'Confess' in the Bible

if we may confess our sins, stedfast He is and righteous that He may forgive us the sins, and may cleanse us from every unrighteousness;

in this know ye the Spirit of God; every spirit that doth confess Jesus Christ in the flesh having come, of God it is,

and every spirit that doth not confess Jesus Christ in the flesh having come, of God it is not; and this is that of the antichrist, which ye heard that it doth come, and now in the world it is already.

whoever may confess that Jesus is the Son of God, God in him doth remain, and he in God;