The angel of the Lord found Hagar near a spring in the desert; it was the spring that is beside the road to Shur. And he said, “Hagar, slave of Sarai, where have you come from, and where are you going?”
“I’m running away from my mistress Sarai,” she answered.
Then the angel of the Lord told her, “Go back to your mistress and submit to her.” The angel added, “I will increase your descendants so much that they will be too numerous to count.”
The angel of the Lord also said to her:
“You are now pregnant
and you will give birth to a son.
You shall name him Ishmael,
for the Lord has heard of your misery.
He will be a wild donkey of a man;
his hand will be against everyone
and everyone’s hand against him,
and he will live in hostility
toward all his brothers.”
Genesis 16:7-12 (NIV)
There is a teaching in the Midrash that suggests Hagar may have been visited by separate angels in Genesis 16. They each seem to have their own message:
verse 7: God’s call.
verse 9: Comfort and instruction.
verse 11: Truth and justice.
In Genesis 18, three men (angels) will appear to Abram… and then later, only two angels will travel to rescue Lot from the cities of Sodom and Gomorrah.
Perhaps this is related.