Charles H. Spurgeon on Psalms 143:12

Of thy mercy cut off mine enemies. He desireth God to slay his enemies in his mercy, when rather their destruction was a work of his justice? I answer, that the destruction of the wicked is a mercy to the church. As God showed great mercy and kindness to his church by the death of Pharaoh, Sennacherib, Herod, and other troublers thereof. —Archibald Symson.