‘And he went forward a little and fell on the ground and prayed that if it were possible, the hour might pass from him’ – the hour of foretaste, and the hour of Calvary. It doesn't just mean the following hours in Gethsemane.
Did he deserve heaven for us? Yes! He was obedient even unto death, the death of the Cross. And when his whole human nature and body was racked with fear, terror, alarm, recoiling, yet he said, ‘Thy will be done.’ He obeyed to the uttermost to deserve glory and heaven for his people. That is the meaning of these words.