'Beginning' in the Bible

“I am the Alpha and the Omega [the Beginning and the End],” says the Lord God, “Who is [existing forever] and Who was [continually existing in the past] and Who is to come, the Almighty [the Omnipotent, the Ruler of all].”

“To the angel (divine messenger) of the church in Laodicea write:“These are the words of the Amen, the trusted and faithful and true Witness, the Beginning and Origin of God’s creation:

saying,“To You we give thanks, O Lord God Almighty [the Omnipotent, the Ruler of all], Who are and Who were, because You have taken Your great power and the sovereignty [which is rightly Yours] and have [now] begun to reign.

And He said to me, “It is done. I am the Alpha and the Omega, the Beginning and the End. To the one who thirsts I will give [water] from the fountain of the water of life without cost.