"The Covenant with Isaac Foretold"Genesis 17:21.

In Genesis 17:21, God reaffirms His covenant with Abraham and foretells the birth of Isaac, despite Abraham's doubts due to his old age and Sarah's barrenness. This passage emphasizes the divine promise and the fulfillment of God's plan, highlighting the importance of trust and obedience to God's commands. Despite the seeming impossibility of the situation, God assures Abraham that Sarah will bear a son, whom they shall name Isaac, signifying laughter, as both Abraham and Sarah laughed at the incredibility of such a promise. This verse underscores the power of God's word and His ability to accomplish the miraculous, reinforcing the significance of faith in His promises.