This same rejected King, the disowned Son of David, is here heard also. He is blessedly making God everything to Him. He will own no other refuge, or source of strength, but God. God is His rock, His salvation, His glory. His soul waits only upon Him, and all His expectation is from Him. (See Heb. 10:12-13,12But this man, after he had offered one sacrifice for sins for ever, sat down on the right hand of God; 13From henceforth expecting till his enemies be made his footstool. (Hebrews 10:12‑13) and see Psa. 110.) This is a truly excellent expression of the faith of the rejected Jesus, who was the Remnant, as we may speak, in His day; and most acceptable must have been the incense of it before God.
In this Psalm, Jesus enjoys God as His Rock; in Psalm 61 He desired the Rock-and He encourages His people to have the same mind, and to cease from man; and challenges the men of this world for their deceit and violence and false confidence.
Thus the Lord shows Himself separate from fallen man. He trusts only in God, and will take only from God. The devil would have had Him trust him, and take from him, as Adam did of old (Gen. 3), and as the Apostate will by and by (Rev. 13:22And the beast which I saw was like unto a leopard, and his feet were as the feet of a bear, and his mouth as the mouth of a lion: and the dragon gave him his power, and his seat, and great authority. (Revelation 13:2)), but He refused (Matt. 4).
And He has learned God’s mercy also. Because, though God Himself is everything, as their utterance had owned, yet will He give every one the reward of his works. Though He works all our works in us, yet will He deal with them as ours, and reward even the cup of cold water given in the name of Jesus.