Genesis 21:1-5 New English Translation (NET)

1. The Lord visited Sarah just as he had said he would and did for Sarah what he had promised.

2. So Sarah became pregnant and bore Abraham a son in his old age at the appointed time that God had told him.

3. Abraham named his son – whom Sarah bore to him – Isaac.

4. When his son Isaac was eight days old, Abraham circumcised him just as God had commanded him to do.

5. (Now Abraham was a hundred years old when his son Isaac was born to him.)

Genesis 21