Sarah, oh why could you not just trust God? now you've started a conflict in the middle east which will go on for eons.

Genesis

16 Now Sarai, Abram's wife, had borne him no children. She had a female Egyptian servant whose name was Hagar. ² And Sarai said to Abram, “Behold now, the Lord has prevented me from bearing children. Go in to my servant; it may be that I shall obtain children by her.” And Abram listened to the voice of Sarai. ³ So, after Abram had lived ten years in the land of Canaan, Sarai, Abram's wife, took Hagar the Egyptian, her servant, and gave her to Abram her husband as a wife. ⁴ And he went in to Hagar, and she conceived. And when she saw that she had conceived, she looked with contempt on her mistress.

Binny John

  ⁵ And Sarai said to Abram, “May the wrong done to me be on you! I gave my servant to your embrace, and when she saw that she had conceived, she looked on me with contempt. May the Lord judge between you and me!” ⁶ But Abram said to Sarai, “Behold, your servant is in your power; do to her as you please.” Then Sarai dealt harshly with her, and she fled from her.

⁷ The angel of the Lord found her by a spring of water in the wilderness, the spring on the way to Shur. ⁸ And he said, “Hagar, servant of Sarai, where have you come from and where are you going?” She said, “I am fleeing from my mistress Sarai.” ⁹ The angel of the Lord said to her, “Return to your mistress and submit to her.” ¹⁰ The angel of the Lord also said to her, “I will surely multiply your offspring so that they cannot be numbered for multitude.” 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,
    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.”

(ESV)