In **Genesis 17**, God appears to Abram when he is ninety-nine years old, establishing the covenant of circumcision as an everlasting sign of His promise to make Abram the father of many nations. God renames Abram to Abraham and Sarai to Sarah, reiterating the promise of a son through Sarah, despite their advanced age. This chapter marks a significant deepening of God's covenant with Abraham, emphasizing His faithfulness and the physical sign that would set His people apart.
