The thought of our sins and His coming suffering causes the agonizing Savior to sweat blood. (Luke 22:39-44).
It is for the love of His Father above all else that Jesus willed to undergo His Passion.
Behold Jesus Christ in His agony. For three long hours weariness, grief, fear and anguish sweep in upon His soul like a torrent; the pressure of this interior agony is so immense that blood bursts forth from His sacred veins. What an abyss of suffering is reached in this agony! And what does Jesus say to His Father? "Father, if it be possible, let this chalice pass from Me." Can it be that Jesus no longer accepts the Will of His Father? Oh! certainly He does. But this prayer is the cry of the sensitive emotions of poor human nature, crushed by ignominy and suffering. Now is Jesus truly a "Man of Sorrows." Our Savior feels the terrible weight of His agony bearing down upon His shoulders. He wants us to realize this; that is why He utters such a prayer.
But listen to what He immediately adds: "Nevertheless, Father, not My will but Thine be done." Here is the triumph of love. Because He loves His Father, He places the Will of His Father above everything else and accepts every possible suffering in order to redeem us.