Saul’s three falls in 1 Samuel 13-15 are a replay of the falls of man in Genesis 3, 4, and 6.
Saul offers forbidden sacrifice
– Adam eats forbidden fruit
Saul makes a rash vow against his kin and threatens death
– Cain murders Abel
Saul fails to destroy the Amalekites
– Sons of God marry the daughters of men
These falls highlight the three spheres of reality – relationship with God, with those inside the covenant body (the church), and with those outside the covenant body.
Saul failed in all three arenas and, just as the world was swept away under Noah, his kingdom was torn from him and given to another, a man after God’s own heart.