Jewish festivals

Divine appointments set by God to reveal His plan of salvation for Israel and for the world. Although, centered around the Jewish people. The Jewish festivals don't need to observed by gentile believers, because their names are already written in the Lam's book of life, at the moment they put their trust in Jesus.
Before we study all seven festivals, let's first read God's Word, where Leviticus 23 (NIV) says:
The Appointed Festivals
1The Lord said to Moses, 2“Speak to the Israelites and say to them: ‘These are my appointed festivals, the appointed festivals of the Lord, which you are to proclaim as sacred assemblies.
The Sabbath
3“ ‘There are six days when you may work, but the seventh day is a day of sabbath rest, a day of sacred assembly. You are not to do any work; wherever you live, it is a sabbath to the Lord.
(1) The Passover and (2) the Festival of Unleavened Bread
4“ ‘These are the Lord’s appointed festivals, the sacred assemblies you are to proclaim at their appointed times: 5The Lord’s Passover begins at twilight on the fourteenth day of the first month. 6On the fifteenth day of that month the Lord’s Festival of Unleavened Bread begins; for seven days you must eat bread made without yeast. 7On the first day hold a sacred assembly and do no regular work. 8For seven days present a food offering to the Lord. And on the seventh day hold a sacred assembly and do no regular work.’ ”
(3) Offering the Firstfruits
9The Lord said to Moses, 10“Speak to the Israelites and say to them: ‘When you enter the land I am going to give you and you reap its harvest, bring to the priest a sheaf of the first grain you harvest. 11He is to wave the sheaf before the Lord so it will be accepted on your behalf; the priest is to wave it on the day after the Sabbath. 12On the day you wave the sheaf, you must sacrifice as a burnt offering to the Lord a lamb a year old without defect, 13together with its grain offering of two-tenths of an ephah of the finest flour mixed with olive oil—a food offering presented to the Lord, a pleasing aroma—and its drink offering of a quarter of a hin of wine. 14You must not eat any bread, or roasted or new grain, until the very day you bring this offering to your God. This is to be a lasting ordinance for the generations to come, wherever you live.
(4) The Festival of Weeks
15“ ‘From the day after the Sabbath, the day you brought the sheaf of the wave offering, count off seven full weeks. 16Count off fifty days up to the day after the seventh Sabbath, and then present an offering of new grain to the Lord. 17From wherever you live, bring two loaves made of two-tenths of an ephah of the finest flour, baked with yeast, as a wave offering of firstfruits to the Lord. 18Present with this bread seven male lambs, each a year old and without defect, one young bull and two rams. They will be a burnt offering to the Lord, together with their grain offerings and drink offerings—a food offering, an aroma pleasing to the Lord. 19Then sacrifice one male goat for a sin offering and two lambs, each a year old, for a fellowship offering. 20The priest is to wave the two lambs before the Lord as a wave offering, together with the bread of the firstfruits. They are a sacred offering to the Lord for the priest. 21On that same day you are to proclaim a sacred assembly and do no regular work. This is to be a lasting ordinance for the generations to come, wherever you live. 22“ ‘When you reap the harvest of your land, do not reap to the very edges of your field or gather the gleanings of your harvest. Leave them for the poor and for the foreigner residing among you. I am the Lord your God.’ ”
(5) The Festival of Trumpets
23The Lord said to Moses, 24“Say to the Israelites: ‘On the first day of the seventh month you are to have a day of sabbath rest, a sacred assembly commemorated with trumpet blasts. 25Do no regular work, but present a food offering to the Lord.’ ”
(6) The Day of Atonement
26The Lord said to Moses, 27“The tenth day of this seventh month is the Day of Atonement. Hold a sacred assembly and deny yourselves, and present a food offering to the Lord. 28Do not do any work on that day, because it is the Day of Atonement, when atonement is made for you before the Lord your God. 29Those who do not deny themselves on that day must be cut off from their people. 30I will destroy from among their people anyone who does any work on that day. 31You shall do no work at all. This is to be a lasting ordinance for the generations to come, wherever you live. 32It is a day of sabbath rest for you, and you must deny yourselves. From the evening of the ninth day of the month until the following evening you are to observe your sabbath.”
(7) The Festival of Tabernacles
33The Lord said to Moses, 34“Say to the Israelites: ‘On the fifteenth day of the seventh month the Lord’s Festival of Tabernacles begins, and it lasts for seven days. 35The first day is a sacred assembly; do no regular work. 36For seven days present food offerings to the Lord, and on the eighth day hold a sacred assembly and present a food offering to the Lord. It is the closing special assembly; do no regular work.
37(“ ‘These are the Lord’s appointed festivals, which you are to proclaim as sacred assemblies for bringing food offerings to the Lord—the burnt offerings and grain offerings, sacrifices and drink offerings required for each day. 38These offerings are in addition to those for the Lord’s Sabbaths and in addition to your gifts and whatever you have vowed and all the freewill offerings you give to the Lord.)
39“ ‘So beginning with the fifteenth day of the seventh month, after you have gathered the crops of the land, celebrate the festival to the Lord for seven days; the first day is a day of sabbath rest, and the eighth day also is a day of sabbath rest. 40On the first day you are to take branches from luxuriant trees—from palms, willows and other leafy trees—and rejoice before the Lord your God for seven days. 41Celebrate this as a festival to the Lord for seven days each year. This is to be a lasting ordinance for the generations to come; celebrate it in the seventh month. 42Live in temporary shelters for seven days: All native-born Israelites are to live in such shelters 43so your descendants will know that I had the Israelites live in temporary shelters when I brought them out of Egypt. I am the Lord your God.’ ”

44So Moses announced to the Israelites the appointed festivals of the Lord.

Spring festivals

Festivals fulfilled at the first coming of the Messiah, Jesus. In the past, about 2,000 years ago. Fulfilled by Jesus in chronological order in a time-frame of 50 days.
1 Passover. Passover (Pesach in Hebrew) is a Jewish festival celebrating the exodus from Egypt and the Israelites’ freedom from slavery to the Egyptians. The Feast of Passover, along with the Feast of Unleavened Bread, was the first of the festivals to be commanded by God for Israel to observe (see Exodus 12). Commemorations today involve a special meal called the Seder, featuring unleavened bread and other food items symbolic of various aspects of the exodus. Passover and the story of the exodus have great significance for Christians also, as Jesus Christ fulfilled the Law, including the symbolism of the Passover (Matthew 5:17). Jesus is our Passover (1 Corinthians 5:7; Revelation 5:12). He was killed at Passover time, and the Last Supper was a Passover meal (Luke 22:7–8). By (spiritually) applying His blood to our lives by faith, we trust Christ to save us from death. The Israelites who, in faith, applied the blood of the Pascha lamb to their homes become a model for us. It was not the Israelites’ ancestry or good standing or amiable nature that saved them; it was only the blood of the lamb that made them exempt from death (see John 1:29 and Revelation 5:9–10). 
2 Unleavened Bread. The Feast of Unleavened Bread is one of the seven feasts of the Lord and has a significant place within Judaism. This observance, also called Chag HaMatzot, lasts seven days and follows the celebration of Passover, commemorating the swift departure of the Israelites from Egypt. A key element of this feast is the consumption of unleavened bread, symbolizing the haste with which the Israelites left Egypt. Moreover, the required removal of all leaven (or yeast) from the household represents the removal of sin and impurity from one’s life (see 1 Corinthians 5:7). The biblical origin of the Feast of Unleavened Bread can be found in Exodus 12:15–20. In this passage, Moses explains how God delivered the Israelites from bondage in Egypt. As they hurriedly left Egypt, they did not have enough time to let their bread rise, leading to the tradition of consuming unleavened bread during the week of the festival. 
3 First Fruits. The Feast of Firstfruits was a festival commanded by the Lord that took place within the Passover celebration. One of seven feasts of the Lord, the Feast of Firstfruits was celebrated in the Jewish month Nisan (roughly late March to early April). The Feast of Firstfruits served as a reminder to the Israelites of God’s provision in the Promised Land. Ultimately, the Israelites were to acknowledge that God had rescued them from slavery in Egypt and provided them a place to live and grow crops (Deuteronomy 26:1–11). 
4 Pentecost or Feast of Weeks or Shavuot. Described in Leviticus 23, The Feast of Weeks is the second of the three “solemn feasts” that all Jewish males were required to travel to Jerusalem to attend (Exodus 23:14–17; 34:22–23; Deuteronomy 16:16). This important feast gets its name from the fact that it starts seven full weeks, or exactly 50 days, after the Feast of Firstfruits. Since it takes place exactly 50 days after the previous feast, this feast is also known as “Pentecost” (Acts 2:1), which means “fifty.” 
For believers in Jesus there is an event, called the Rapture. We read in 1 Tessalonians 4:16 about the trumpet call of God, after which in verse 17 the church is taken up in the clouds. The parallel text is given in 1 Corinthians 15:52, where the rapture is taking place at the sound of the last trumpet. Jews will say: "Right, this is the trumpet call of Rosh Hashanah". See festival 5. Some followers of Yeshua (Jesus) will argue that this last call is the same as the sound on the seventh trumpet of Revelation 11:15. A sound of horns blown by people on earth. We hear this in circles of mid-tribulation rapture exegesis. I however, as a pre-tribulation rapture believer, say that the sound of the last trumpet will be heard as a heavenly blow at the pre-tribulation rapture, as a last-trumpet call of the church age dispensation.

Fall festivals

Prophetic events; festivals to be fulfilled at the second coming of the Messiah, Jesus. Yet future. Will be fulfilled in chronological order in 20 days.
5 Rosh Hashanah. Festival of the trumpets. Jewish New Year. See Leviticus 23:23-25 says 23The Lord said to Moses, 24“Say to the Israelites: ‘On the first day of the seventh month you are to have a day of sabbath rest, a sacred assembly commemorated with trumpet blasts. 25Do no regular work, but present a food offering to the Lord.’ ” Mostly 10 days seeking the Lord, until Yom Kippur. Jews are celebrating that their faith is sealed and their name is written in the Book of Life. The complete fulfillment of Rosh Hashanah will take place at Jesus' second coming, when one-third of the Jewish people will see Him. See Zechariah 12-14. Watch the short video by Amir Tsarfati, called The True Meaning of Rosh Hashanah.
6 Yom Kippur or day of atonement. Leviticus 23:26-28 says  26The Lord said to Moses, 27“The tenth day of this seventh month is the Day of Atonement. Hold a sacred assembly and deny yourselves, and present a food offering to the Lord. 28Do not do any work on that day, because it is the Day of Atonement, when atonement is made for you before the Lord your God." On that day, the high priest was to perform elaborate rituals to atone for the sins of the people. The atonement ritual began with Aaron, or subsequent high priests of Israel, coming into the holy of holies.
In prophetic sense this festival will be fulfilled when the Jews repent and accept Jesus as their Messiah, Lord and Savior at the end of the Tribulation and Jesus' second advent. Watch the short video by Amir Tsarfati, called The True Meaning of Yom Kippur.
7 Feast of Tabernacles. The Feast of Tabernacles, also known as the Feast of Booths and Sukkot, is the seventh and last feast that the Lord commanded Israel to observe and one of the three feasts that Jews were to observe each year by going to “appear before the Lord your God in the place which He shall choose” (Deuteronomy 16:16).
The Feast of Tabernacles, like all the feasts, was instituted by God as a way of reminding Israelites in every generation of their deliverance by God from Egypt. Of course, the feasts are also significant in that they foreshadow the work and actions of the coming Messiah. Much of Jesus’ public ministry took place in conjunction with the Holy Feasts set forth by God. Will be fulfilled in the Millennial Kingdom; Read Zechariah 14:16-20.
Non-appointed festivals
(8) Hanukkah is the Jewish Festival/Feast of Dedication, also known as the "Festival of Lights.” It is an eight-day festival beginning on the 25th day of the Jewish month of Kislev, which typically falls in November or December on our calendar. Although this Jewish festival in not mentioned in the Tanakh (the Hebrew Bible), it is referenced in the Talmud. Therefore, we cannot say that this feast is commanded by the Lord to observe. Hanukkah is called the Feast of Dedication because it celebrates the Maccabees' victory over Greek oppression and the rededication of the Temple in Jerusalem. The Feast of Dedication is mentioned in the New Testament, John 10:22.
(9) Purim is a Jewish holiday in celebration of the deliverance of the Jews as recorded in the book of Esther. It is also known as the Feast of Lots (Purim being the Hebrew word for “lots”). The feast is not mentioned in the New Testament. Like Hanukkah, the Feast of Purim has developed into more of a national holiday than a religious one, although it starts with specific prayers and a reading of the book of Esther. The celebration also involves giving gifts of food to friends, charity to the poor, and a big meal. When the book of Esther is read, the audience joins in, cheering when Mordecai’s name is mentioned, and shouting and making noise when Haman’s is.