Who is the liar but he who denies that Jesus is the Christ? This is the Antichrist, he who denies the Father and the Son.

 Further, it is Jesus' claim that a man's reaction to him is, in fact, a reaction to God and that that reaction settles his destiny in time and in eternity. He said, "So everyone who acknowledges me before men, I also will acknowledge before my Father who is in heaven; but whoever denies me before men, I also will deny before my Father who is in heaven" ( Matthew 10:32-33). To deny Jesus is to be separated from God, for on our reaction to Jesus our relationship to God depends. 