Genesis 16:15--17:1

16:15 So Hagar gave birth to Abram’s son, whom Abram named Ishmael. 16:16 (Now Abram was 86 years old when Hagar gave birth to Ishmael.)

The Sign of the Covenant

17:1 When Abram was 99 years old, the Lord appeared to him and said, “I am the sovereign God. Walk before me and be blameless.