For the Lord is angry at all the nations and furious with all their armies. He will annihilate them and slaughter them.

for the Lord determined to make them obstinate so they would attack Israel. He wanted Israel to annihilate them without mercy, as he had instructed Moses. ¹ 

At that time Joshua attacked and eliminated the Anakites from the hill country ¹  – from Hebron, Debir, Anab, and all the hill country of Judah and Israel. ²  Joshua annihilated them and their cities.

However, Saul and the army spared Agag, along with the best of the flock, the cattle, the fatlings, ¹  and the lambs, as well as everything else that was of value. ²  They were not willing to slaughter them. But they did slaughter everything that was despised ³  and worthless.