Abraham Serving Three Angels by Rembrandt

Abraham and Sarah guided many into the monotheistic faith of One G-d. They did not have children of their own until the Bible describes the visitation of three angels, bringing them surprising news.

Genesis 18:1-2, 10

The L-RD appeared to him (Abraham) by the terebinths of Mamre… Looking up, he saw three men standing near him.…. Then one said, “I will return to you next year, and your wife Sarah shall have a son!”