16:15. And Agar brought forth a son to Abram: who called his name Ismael.
16:16. Abram was four score and six years old when Agar brought him forth Ismael.
Genesis Chapter 17
The Covenant of circumcision.
17:1. And after he began to be ninety and nine years old, the Lord appeared to him: and said unto him: I am the Almighty God: walk before me, and be perfect.
17:2. And I will make my covenant between me and thee: and I will multiply thee exceedingly.
17:3. Abram fell flat on his face.
17:4. And God said to him: I am, and my covenant is with thee, and thou shalt be a father of many nations.
17:5. Neither shall thy name be called any more Abram: but thou shalt be called Abraham: because I have made thee a father of many nations.
Abram… in the Hebrew, signifies a high father: but Abraham, the father of the multitude; Sarai signifies my Lady, but Sara absolutely Lady.