1Now Sarai, Abram’s wife, had borne him no children. And she had an Egyptian maidservant whose name was Hagar. 2So Sarai said to Abram, “See now, the Lord has restrained me from bearing children. Please, go in to my maid; perhaps I shall [a]obtain children by her.” And Abram heeded the voice of Sarai.
Verse 2, Abram listens to his wife (😞). God hadn't explicitly said "Sarai will be the way in which you bear children" in prior verses, so likely this wasn't out of lack of faith. He takes Hagar, his wife's Egyptian servant As a wife and she becomes pregnant. Once pregnant, she starts to hate Sarai probably for getting the majority of Abram's love and affection. Sarai gets mad because her servant is pregs and is being rude to her. Logically (lol, LMAO) she takes it out on Abram. In fairness to her, it was his fault for listening to his wife 😎. Abram tells her to deal with her however she wants, and she starts to get really mean towards her, causing Hagar to flee. God finds her at a spring, which scares her. God tells her to return and submit to Sarai, and that He will multiply her lineage so that they cannot be counted.
11 And the angel of the Lord said to her, “Behold, you are pregnant and shall bear a son. You shall call his name Ishmael [God hears] because the Lord has listened to your affliction. 12 He shall be a wild donkey of a man,his hand against everyone and everyone’s hand against him, and he shall dwell over against all his kinsmen.”
I've heard this stated as the father of the races that eventually bore Mohammed and the Muslims, since they've had perpetual war against Christianity.
RT: https://poa.st/objects/9880ff24-e655-4f6f-9f29-906a30d93d2c