'Denied' in the Bible

And he acknowledged and denied not, and acknowledged, I am not the Christ.

Jesus answers, Thou wilt lay down thy life for me! Verily, verily, I say to thee, The cock shall not crow till thou hast denied me thrice.

But Simon Peter was standing and warming himself. They said therefore to him, Art thou also of his disciples? He denied, and said, I am not.

Peter denied therefore again, and immediately the cock crew.