31 Then Jesus said to them, "You will all fall away because of me this night; for it is written,
'I will strike the shepherd,
and the sheep of the flock will be scattered.'
32 But after I have been raised, I will go before you to Galilee." 33 Peter declared to him, "Even if all fall away because of you, I will never fall away." 34 Jesus said to him, "Truly I say to you, this very night, before the rooster crows, you will deny me three times." 35 Peter said to him, "Even if I have to die with you, I will not deny you." And so said all the disciples.
MK 14:26-31
26 And when they had sung a hymn, they went out to the Mount of Olives.
27 And Jesus said to them, "You will all fall away; for it is written:
'I will strike the shepherd,
and the sheep will be scattered.'
28 But after I have been raised, I will go before you to Galilee." 29 Peter said to him, "Even if all fall away, I will not." 30 Jesus said to him, "Truly, I say to you that this very night, before the rooster crows twice, you will deny me three times." 31 But he spoke more vehemently, "If I have to die with you, I will not deny you!" And they all said the same.