Egyptian servant of Sarah who bore Abraham's firstborn son Ishmael. She fled mistreatment by Sarah and was met by an angel at a spring in the desert who promised her descendants too many to count. God heard her and her son crying in the wilderness after they were sent away.
Now Sarai Abram’s wife bare him no children: and she had an handmaid, an Egyptian, whose name was Hagar.Genesis 16:1, KJV
Genesis 16:11
And the angel of the LORD said unto her, Behold, thou art with child, and shalt bear a son, and shalt call his name Ishmael; because the LORD hath heard thy affliction.Genesis 16:11, KJV
Genesis 21:9
And Sarah saw the son of Hagar the Egyptian, which she had born unto Abraham, mocking.Genesis 21:9, KJV
Genesis 21:17
And God heard the voice of the lad; and the angel of God called to Hagar out of heaven, and said unto her, What aileth thee, Hagar? fear not; for God hath heard the voice of the lad where he is.Genesis 21:17, KJV
Galatians 4:24
Which things are an allegory: for these are the two covenants; the one from the mount Sinai, which gendereth to bondage, which is Agar.Galatians 4:24, KJV
See how Hagar connects to every other figure in Scripture.