In Genesis 16, Hagar, Sarai’s maid runs away because of Sarai’s jelousy that she is with Abraham’s child. An angel of the Lord goes out to find Hagar and tells her to return and promises to bless her. So, an angel of the Lord goes searching not for a prophet or some great man, but a wayward and sinful maid and promises to bless her. Don’t tell me you can’t find grace in the Old Testament! Grace is all over the Old Testament. God doesn’t just talk to prophets and kings, He also talks to maidens.