All the people said to Samuel, Pray for your servants to Yahweh your God, that we not die; for we have added to all our sins [this] evil, to ask us a king.
"Serve the Lord with all your heart"  (1 Samuel 12:20).  No merely pretended service of the Lord could suffice; as reiterated long afterward by the Saviour, "Thou shalt love the Lord your God with all your heart, soul, mind and strength, this is the first and great commandment" (Mark 12:29).