A  Pharaoh, “kill every firstborn son.” (the source of death)

B  The Midwives: feared God, saved the newborns (the source of life)

A’  Pharaoh, “why didn’t you kill the firstborn sons?” (the source of death)

B’  The Midwives: God dealt kindly to them for saving the newborns (the source of life)

A’  Pharaoh, “throw every newborn son into the river.” (the source of death)