And Jesus said to them: Everyone will turn away , because it is written:

“I will strike down the shepherd,
And the sheep will be scattered.”

But after I am raised, I will go ahead of you to Galilee.’

But Peter said to him:

‘Even though everyone turns away, certainly I will not.’

And Jesus said to him:

‘Truly I say to you, that you will deny me today three times – this night before the cock crows twice.’

But Peter said emphatically : ‘If it is necessary for me to die with you, I will not deny you.’ 

Everyone spoke in the same way.

Be thou my vision, O Lord of my heart;
Naught be all else to me, save that thou art –
Thou my best thought, by day or by night;
Waking or sleeping, thy presence my light.