Hagar

When Sarah couldn't conceive, she gave Hagar to Abraham as a surrogate (Genesis 16). Once pregnant, tensions exploded and Sarah mistreated her. Hagar fled but God met her in the wilderness — she's the first person in Scripture to give God a name: 'You are the God who sees me' (Genesis 16:13). Later cast out with Ishmael, God again provided for them in the desert.