What does the Bible say about the unity of God?

Scripture emphasizes the unity of God, declaring that 'Great is the mystery of godliness: God was manifest in the flesh' (1 Timothy 3:16). This unity is expressed throughout the Bible, confirming that while God reveals Himself in diverse ways, including as Father, Word, and Holy Spirit, He is one in essence. The consistency of this truth encourages believers to understand that everything in Scripture points to Jesus Christ as the full manifestation of God, both in the Old Testament and New Testament.