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 14:72

14:72 Immediately a rooster crowed a second time. Then Peter remembered what Jesus had said to him: “Before a rooster crows twice, you will deny me three times.” And he broke down and wept.