While our Lord in Gethsemane received no answer to his repeated knocking on heaven’s door, he knew, from that profound silence, that he must drink the awful chalice that the Father had placed in his hands. Always he was fully aware of the covenant bond between the Father, representing the Trinity, and himself, representing his people – the covenant of grace. Again and again he addressed the Father, a word so often on his lips, as ‘my Father’ and ‘my God’. That is covenant language.
Christ knew that the Father smote him for the salvation of his people. Before going to Gethsemane, he warned his disciples that they would soon forsake him, quoting from Zechariah, ‘I will strike the shepherd, and the sheep of the flock will be scattered’ (Matt.26:31). He willingly submitted to the rod. In Gethsemane he virtually said, ‘Here am I’. His obedience was covenant obedience. He was ever mindful of his eternal undertaking as the Surety and Mediator of his people, a thought that is dominant in his high priestly prayer (John 17). He never doubted that holy decree by which he came into the world to save sinners. And so the darker the night, the greater the storm and the fiercer the conflict, the more he reached out to his Father and rested in his sovereign will.
Taken from chapter 3, “Strengthened to Suffer” (based on Luke 22:43) by Frederick S. Leahy in The Cross He Bore: Meditations on the Sufferings of the Redeemer (Banner of Truth, 1996), p.14.