22:16 David compared his enemies to wild dogs that had him surrounded and were waiting to finish him off. Already he felt as though they had begun to tear him apart by biting his extremities, his hands and feet. Years later the enemies of the Lord Jesus truly pierced His hands and His feet when they nailed Him to the cross (cf. Luke 24:39-40).
22:17-18 Again David followed a description of his enemies with one of his own agony (cf. vv. 12-15). He was evidently weak and emaciated; his bones were showing prominently under his skin due to loss of weight produced by his distress. Apparently his enemies were so sure that David would perish they were already invading his wardrobe and dividing his clothes up among themselves. Again, this really happened when Jesus Christ's enemies crucified Him (Matt. 27:35).
