Watch and pray, lest you enter into temptation. The spirit indeed is willing, but the flesh is weak."
Matthew 26:41
Surrounding context
26:40 Then He came to the disciples and found them sleeping, and said to Peter, "What! Could you not watch with Me one hour?
26:41 Watch and pray, lest you enter into temptation. The spirit indeed is willing, but the flesh is weak."
26:42 Again, a second time, He went away and prayed, saying, "O My Father, if this cup cannot pass away from Me unless I drink it, Your will be done."