Matthew 26:72
Again he denied it with an oath: "I do not know the man!"
Matthew 5:34-36
I, however, say to you that you must not swear at all, either by Heaven, since that is God's throne,
Matthew 26:74
Then Peter began to swear, with most solemn imprecations: "I do not know the man." At that moment a cock crowed;
Luke 22:34
"I tell you, Peter," replied Jesus, "the cock will not crow to-day till you have disowned all knowledge of me three times."
Acts 5:3-4
"Ananias," Peter exclaimed, "how is it that Satan has so taken possession of your heart that you have lied to the Holy Spirit, and kept back a part of the money paid for the land?