Mark 14:30

And Jesus saith unto him, verily I say unto thee ,.... As confident as thou art of standing by me, and abiding with me;

that this day , which was then begun; for the Jews reckoned their days from evening, as in Genesis 1:5 ;

even in this night ; this night to be observed, this night of the passover, before it is past:

before the cock crow twice ; for there was a first and second cock crowing, the one at midnight, and the other near break of day, and which last is properly the cock crowing: the word "twice" is left out in the Ethiopic version:

thou shalt deny me thrice ; as he did; See Gill on Matthew 26:34 .