Genesis 16:7-16

⁷ Now the angel of the LORD found her by a spring of water in the wilderness, by the spring on the way to Shur. ⁸He said, "Hagar, Sarai's maid, where have you come from and where are you going?" And she said, "I am fleeing from the presence of my mistress Sarai." ⁹ Then the angel of the LORD said to her, "Return to your mistress, and submit yourself to her authority." ¹⁰ Moreover, the angel of the LORD said to her, "I will greatly multiply your descendants so that they will be too many to count." ¹¹ The angel of the LORD said to her further,

"Behold, you are with child,
And you will bear a son;
And you shall call his name ¹Ishmael,
Because the LORD has given heed to your affliction.
¹² "He will be a wild donkey of a man,
His hand will be against everyone,
And everyone's hand will be against him;
And he will live to the east of all his brothers."

¹³ Then she called the name of the LORD who spoke to her, "You are a God who sees"; for she said, "Have I even remained alive here after seeing Him?" ¹⁴ Therefore the well was called ²Beer-lahai-roi; behold, it is between Kadesh and Bered.

¹⁵ So Hagar bore Abram a son; and Abram called the name of his son, whom Hagar bore, Ishmael. ¹⁶ Abram was eighty-six years old when Hagar bore Ishmael to him.

Shock and surprise.  God meets Hagar while she is fleeing from Abram and Sarai, and what does He tell her to do? Go back. Sometimes, God's chosen ones make mistakes; big ones. But so long as God sees fit to continue using them, we aren't the ones to rebel against their authority. God will discipline them, and He won't allow His plan to be defeated.