Mark 13:35

13:35 Stay alert, then, because you do not know when the owner of the house will return – whether during evening, at midnight, when the rooster crows, or at dawn –

Mark 14:30

14:30 Jesus said to him, “I tell you the truth, today – this very night – before a rooster crows twice, you will deny me three times.”

Mark 14:68

14:68 But he denied it: “I don’t even understand what you’re talking about!” Then he went out to the gateway, and a rooster crowed.