Among the gifts of The Old Testament are the stories which describe the human condition and our relationship to God. We find ourselves in the stories, which put flesh on theology.
It's one thing to assert "Likewise the Spirit helps us in our weakness; but we do not know how to pray as we are ought, but that very Spirit intercedes with sighs too deep for words" (Romans 8:26) and quite another to see this in God hearing Ishmael's unspoken prayers as his mother leaves him to die.
It's one thing to claim "Where can I go from your Spirit? Or where can I flee from your presence? If I ascend to heaven, you are there; if I make my bed and She'ol, you are there" (Psalm 139:7-8) and another to recognize that Hagar and Ishmael were cast out by Abraham, but never outside of God's care.
Biblical stories, especially those in Genesis, help us to find the intersection between what we claim about the faith and how it is experienced in daily life, much of which can be messy and complicated. What we continue to find despite the mess (or, perhaps because of it) is a God who is present, who hears, and who saves. I'm not sure what more we could ask.