# the rooster will not crow this day before you deny three times that you know me

 "you will deny three times that you know me before the rooster crows this day"

# rooster

a bird that calls out loudly before the sun comes up

# this day

The Jewish day begins at sunset. Jesus was speaking after the sun had set. The rooster would crow just before morning. The morning was part of "this day." Alternate translation: "tonight" or "in the morning"