“Father, if you are willing, remove this cup from me. Nevertheless, not my will, but yours, be done.”
– Luke 22:42
In this picture the cords tied around Christ’s heart represent two desires. One is His natural desire to avoid the torments of the cross, and the other is His Father’s will that He face the cross and divine wrath and so receive the joy and glory on the other side.
Christ has severed the natural “will” (“not my will…”) and is clinging to the Father’s will. The crucial thing to recognize, however, is that, by saying “not my will but yours be done,” Jesus is actually manifesting His own deepest “will” or want or desire. Deeper than the natural desire to avoid the cross, Jesus wanted the Father’s will to be done….so in saying, “not my will,” what Jesus was really saying was, “not my surface wants, but my deepest wants be done…i.e., YOUR will, Father.”
I do not believe that this text teaches us that there are two wills in Christ, but only that there are multiple depths of one will in Him (as any who have echoed His Gethsemane prayer have noticed in themselves). The God-Man Jesus Christ is one person, with one being, knowledge, and will, and so His singular will as the God-Man was, ultimately, that the Father’s will be done.