'Denieth' in the Bible

And Sarah denieth, saying, 'I did not laugh;' for she hath been afraid; and He saith, 'Nay, but thou didst laugh.'

or have found what was lost, and denieth it, and sweareth falsely in anything of all that man doeth, sinning therein;

But he that denieth me before men shall be denied before the angels of God.

Who is a liar but he that denieth that Jesus is the Christ? He is antichrist, that denieth the Father and the Son.

Whosoever denieth the Son, the same hath not the Father: (but) he that acknowledgeth the Son hath the Father also.