Well, I always thought Christ’s words on the matter were “**ALL sins can be forgiven, **except blasphemy of the Holy Spirit”.
I don’t see any other exceptions, including divorce. Christ may have taken a hard line against divorce, but He was also protesting against the prevailing Jewish practice of easy divorce by Jewish husbands, similar to that now enjoyed by Moslem husbands, if my understanding of the context is correct.
Remember His words to the woman caught in adultery, with the usual double standard that they didn’t bring the bloke as well, who must have been present since she was allegedly caught in the act.
John 8:1-11 NIV
"1 but Jesus went to the Mount of Olives.
2 At dawn he appeared again in the temple courts, where all the people gathered around him, and he sat down to teach them. 3 The teachers of the law and the Pharisees brought in a woman caught in adultery. They made her stand before the group 4 and said to Jesus, “Teacher, this woman was caught in the act of adultery. 5 In the Law Moses commanded us to stone such women. Now what do you say?” 6 They were using this question as a trap, in order to have a basis for accusing him.
But Jesus bent down and started to write on the ground with his finger. 7 When they kept on questioning him, he straightened up and said to them, “Let any one of you who is without sin be the first to throw a stone at her.” 8 Again he stooped down and wrote on the ground.
9 At this, those who heard began to go away one at a time, the older ones first, until only Jesus was left, with the woman still standing there. 10 Jesus straightened up and asked her, “Woman, where are they? Has no one condemned you?”
11 “No one, sir,” she said.
“Then neither do I condemn you,” Jesus declared. “Go now and leave your life of sin.”
I wonder what He’d write on the ground about those of us who feel the divorced should not be forgiven, and given another chance?