While barren, she gave her Egyptian maid Hagar to Abraham to bear his children
... Then Sarai, Abram's wife, took Hagar her maid, the Egyptian, and gave her... [DOC] [TLE] HAGAR in the BIBLE: Sarah's slave, Abraham's concubine [PAR] Hagar, Sarah's Egyptian slave girl, bore a son for Abraham, jealous Sarah ... She 
did not trust in God enough to leave the matter in His hands.