'Beginning' in the Bible

I am the Alpha and the Omega, beginning and end, saith the Lord, who is, and who was, and who is coming -- the Almighty.'

and He said to me, 'It hath been done! I am the Alpha and the Omega, the Beginning and the End; I, to him who is thirsting, will give of the fountain of the water of the life freely;

I am the Alpha and the Omega -- the Beginning and End -- the First and the Last.