1) The word "Trinity" does not appear in the Scriptures.
2) The word "Trinity" was first used by Tertullian. (155-230 AD)
3) The doctrine of the Trinity is commonly expressed as: "One God, three Persons." The doctrine is formally adopted in the Nicene Creed of 325 AD.

The doctrine of the Trinity took centuries to develop. The word "Trinity" is not found in the New Testament, nor is the doctrine explicitly taught in the Scriptures. However, many Trinitarian beliefs can also be seen in the teachings of extra-biblical writers in the end of the second century. The clearest early expression of the concept came with Tertullian, a Latin theologian who wrote in the early third century. Tertullian coined the words "Trinity" and "person" and explained that the Father, Son and Holy Spirit were "one in essence (yet) not one in Person." Today, though he would be considered a heretic by modern trinitarians.

God is unique and beyond all comparison. He is the Creator, the Only one who is eternal, without beginning and without end.

Hear, O Israel! The LORD is our God, the LORD is one[color=#990000][/color]! You shall love the LORD your God with all your heart and with all your soul and with all your might. (Deuteronomy 6:4-5)