I tried to make this as brief as possible because the antichristian Professional Faith Merchants are extremely contentious, have such a limited attention span and subject the Spirit of God to their own prejudicial thinking!
 

[VITAL NOTE:] CHRISTIANITY IS NOT BOUND BY ANYTHING IN THE OLD TESTAMENT BECAUSE CHRIST SAID THAT HE FULFILLED THE LAW

1. Can you cite one thing Christ said condemning homosexuality?

[ANSWER: They can't because He didn't.]

2. Did not Christ said in John 5:31 ¶ If I bear witness of myself, my witness is not true?

[ANSWER: YES!]

3. Who testfied that Saul of Tarsus was an Apostle of Jesus Christ?

[ANSWER: Only Saul of Tarsus aka apostle Paul]

4. What did the Apostle John say about the antichrist?

[ANSWER: He would DENY Christ, he would be a DECEIVER and a liar, teach false doctrine, e.g. doctrine contrary to what Christ taught]

Christ said that Saul of Tarsus was a liar and the Apostle John said Saul of Tarsus, as a liar, was of Satan and the antichrist. All those who support, back or are an advocacy Saul of Tarsus in any way is also an antichrist!

John 5:31
  31 ¶ If I bear witness of myself, my witness is not true.
 

1 John 2:18

  18 ¶ Little children, it is the last time: and as ye have heard that antichrist shall come, even now are there many antichrists; whereby we know that it is the last time.

1 John 2:22

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

1 John 4:3

  3 And every spirit that confesseth not that Jesus Christ is come in the flesh is not of God: and this is that [spirit] of antichrist, whereof ye have heard that it should come; and even now already is it in the world.

2 John 1:7

  7 ¶ For many deceivers are entered into the world, who confess not that Jesus Christ is come in the flesh. This is a deceiver and an antichrist.