Charles H. Spurgeon on Psalms 35:12

"They rewarded me evil for good." For the good David did in killing Goliath, and slaying his ten thousands of the Philistines, and thereby saving his king and country, Saul and his courtiers envied him, and sought to slay him; so our Lord Jesus Christ, for all the good he did to the Jews, by healing their bodies of diseases, and preaching the gospel to them for the benefit of their souls, was rewarded with reproaches and persecutions, and at last with the shameful death of the cross; and in like manner are his people used, but this is an evil that shall not go unpunished; see Prov. 17:13. —John Gill.