After 25 years of waiting, longing, and anticipation, Abraham and Sarah finally see God’s promise of a baby fulfilled. Genesis 21 is filled with laughter and feasting and joy, and then the difficulty of family conflict and relational turmoil. In all of this, we see God’s sovereignty on display. At the very end of the chapter we read a new name for God, El Elyon, the Everlasting God. We will see that this characteristic is crucial to make sense of the three major stories – Isaac, Ishmael, and Abimelech – weaving them together under God’s sovereignty and work.