Mark 14:26-31

And when they had sung a hymn, they went out to the Mount of Olives. Then Jesus said to them, “All of you will be made to stumble because of Me this night, for it is written: ‘I will strike the Shepherd, And the sheep will be scattered.’ “But after I have been raised, I will go before you to Galilee.” Peter said to Him, “Even if all are made to stumble, yet I will not be.” Jesus said to him, “Assuredly, I say to you that today, even this night, before the rooster crows twice, you will deny Me three times.” But he spoke more vehemently, “If I have to die with You, I will not deny You!” And they all said likewise.