The ancient Hebrew language that the Old Testament was written in did not have vowels in its alphabet. In written form, ancient Hebrew was a consonant-only language. In the original Hebrew, God’s name transliterates to YHWH (sometimes written in the older style as YHVH). This is known as the tetragrammaton (meaning “four letters”). Because of the lack of vowels, Bible scholars debate how the tetragrammaton YHWH was pronounced.