Who was Hagar in the Bible

Hagar was Sarah’s Maidservant and Mother of Ishmael.

And he said, “Hagar, servant of Sarai, where have you come from, and where are you going?” “I’m running away from my mistress Sarai, “she answered. GENESIS 16:8

Have you ever felt so alone that it seemed like no one cared if you lived or died? Hagar knew these feelings twice.
Hagar was the maidservant of Sarah (named Sarai at the time), the wife of Abraham. God had promised Abraham and Sarah that they would have many descendants, but because of her advanced age, Sarah had not been able to conceive. Sarah came up with her own plan B that involved the socially accepted practice of allowing her maidservant, Hagar, to conceive for her. After Hagar became pregnant with Abraham’s child, however, she began to look down on Sarah, and Sarah began to mistreat her in return. Eventually Hagar fled into the desert to escape. Along the way, the Lord spoke to her and told her to return to Sarah, and He would raise up her child to be the father of a great nation, though that would not be the people of Israel.
A while after Hagar gave birth to Ishmael, Sarah became angry with her again, and this time Sarah sent her away into the desert with Ishmael. When Hagar ran out of water and prepared for Ishmael to die of thirst, the Lord appeared to her again and reiterated His promise to make Ishmael into a great nation. He also showed her a nearby well, and she and Ishmael were saved from certain death.
There are times when we will be mistreated by others, and we may feel like no one cares what happens to us but God always sees us, and He always cares (Psalm 139).We can trust ourselves to Him and know that He is working for our good even in the midst of wrongs that we may be experiencing (Genesis 50:18–20; Romans 8).