1 Samuel 15 : 7 - 10
7 Then Saul attacked the Amalekites all the way from Havilah to Shur,near the eastern border of Egypt. 8 He took Agag king of the Amalekites alive, and all his people he totally destroyed with the sword. 9 But Saul and the army spared Agag and the best of the sheep and cattle, the fat calves[b] and lambs—everything that was good. These they were unwilling to destroy completely, but everything that was despised and weak they totally destroyed.
10 Then the word of the Lord came to Samuel: 11 “I regret that I have made Saul king, because he has turned away from me and has not carried out my instructions.” Samuel was angry, and he cried out to the Lord all that night.
One of that rare moments when God “regret” something was to make Saul King. This incident where Saul disobeyed direct order from God triggered His disappointment.
But I still don’t understand what was Saul motivation to keel Agag King alive? I probably can understand why he kept the best of the sheep and cattle, the fat calves, but not the king.
Someone please enlighten me please?