In the Bible we read the word "kingdom" very often. We need to make sure what we are talking about. In general, Jesus spoke about the "kingdom" as His ultimate rule over the humanity in the universe, past and future. Let's unravel some possible contradictions or issues for debate.

Kingdom of God
The most used word is the Kingdom of God. Look therefore at the article about the kingdom of God. Speaking about the Gospels we see this word used in Mark and Luke and only once in John.

Kingdom of Heaven
The meaning of kingdom of heaven is synonymous to the kingdom of God. The expression kingdom of heaven is only used in the Gospel of Matthew. And therefore the attention is upon the Jews.

Millennial Kingdom
This 1000-year global millennial kingdom with Jesus as global king is future. It will be established as Jesus' second advent.

Kingdom Now
This theological movement called Kingdom Now is a heresy, infiltrated into many churches in the last decennia.