“And he taketh with him Peter and James and John, and began to be sore amazed, and to be very heavy;”
Mark 14:33 — Greek Interlinear
Church Fathers on Mark 14:33
After that the Lord had foretold the offence of His disciples, the Evangelist gives an account of His prayer, in which He is supposed to have prayed for His disciples; and first describing the place of prayer, he says, 'And they came to a place which was named Gethsemane.'
The place Gethsemane, in which the Lord prayed, is shewn up to this day at the foot of the Mount of Olives. The meaning of Gethsemane is, the valley of the fat, or of fatness. Now when our Lord prays on a mountain, He teaches us that we should when we pray ask for lofty things; but by praying in the valley of fatness, He implies that in our prayer humility and the fatness of interior love must be kept. He also by the valley of humility and the fatness of charity underwent…
In the valley of fatness also, the fat bulls beset Him. There follows, 'And He saith to His disciples, Sit ye here, while I shall pray;' they are separated from Him in prayer, who are separated in His Passion; for He prays, they sleep, overcome by the sloth of their heart.