For this reason he felt great joy in his whole being, confident that such communion would not be interrupted by death. His soul would not remain in Hades, and his body itself would not undergo corruption. Rather, he would enjoy the fullness of life in God and joy in communion with Him. The Apostle says that David spoke this concerning Him, that is, concerning Christ. In pointing this out, he then directly explains only the most essential point in this prophetic image, namely what is said in verse 9 of the psalm. Compare Ps 9:27 and Ps 9:31. Yet, without doubt, according to the meaning of the apostolic speech, the whole psalmic image, in all its features, refers to Him. "I saw the Lord," and so on: applied to Jesus the Messiah, this saying is Christ's joyful expression of His confidence in constant inner spiritual union with God the Father throughout His life and activity on earth. God was constantly His helper and protector in all His actions. "At My right hand" means precisely as helper and protector. The likeness is taken from court procedure, where the defender stood at the right hand of the one he defended (Ps 108:31). "That I may not be shaken" means, that I may not err. Without the image, the thought is this: that I may abide unshaken in this union and communion with God throughout all My life and actions. The whole expression is obviously anthropomorphic.