God will never use any means that will cause you great physical or emotional harm for the sake of your betterment.
Brother, in saying this you have neglected one important aspect of how God teaches us and molds us into His likeness: through sufferings. Have you not read the Book of Job? Or surely you should know how our own Lord Jesus suffered in the flesh and in the Spirit because of what He had to bear for our sins? What about the Lord's apostles who were persecuted and beaten by the leaders in their time? How then, can you say that God does not allow us to suffer physically or emotionally to teach us and conform us to His likeness? He does, for our good, to remove our pride and our tendency to depend on our flesh rather than His guidance and counsel. You are not right in saying this, brother.
With that being said I know what being in this sort of relationship is like, and trust me its very emotionally hurtful; it makes you feel terrible every day. If you've never done it you cannot understand.. this is why I gave him the advise I did and you are chosing to give him other advise. God did not put him in this relationship if he did this man would be happy and filled with joy.. He placed himself in it thus it is not of God from the start. I am sorry you cannot see it this way but it doesn't make me wrong. Quoting Hebrews is well and good.. but sometimes quoting experience is just as powerful. The same Yashua that said "if thou put away your wife for a cause other than fornication commits adultery." Also said "forgive us of our debts as we have forgiven our debtors." Thus if it was not possible for God to forgive him there would be no reason to make this prayer.
Perhaps our brother indeed made a wrong choice to marry his current wife, but have you ever thought why God allowed his mistake? It is no doubt that when we make a mistake, we will suffer the consequences, and sometimes even suffer for a lifetime. But if we were to put our hope in God, we will be assured that even if we do make a mistake, God will work everything out for good and we will receive His blessings in the end if we yield in obedience to Him. It is not wise in any way to take things into our own hands and make decisions based on our own feelings, which can be very deceptive.
True love is about sacrifice, and I believe it will do well for this brother to neglect his own emotional needs for the well-being of his wife. I am not saying it is easy, but if his heart is willing to make such a huge sacrifice, he would be glorifying God in an unspeakable way. I long to see such a brother, who loves God to such an extent that he truly denies himself and only regards for the glory of his God, no matter how big the sacrifices he has to make. This is the exact charater of Christ our Lord, whom we all ought to learn from and follow after.
You are right that I cannot sympathize with the brother as to the emotional burdens he carry, but I do believe that there is a responsibility on him towards his current wife and God. While God blesses His children, He never teaches us to neglect our responsibilities and to think selfishly of our own emotional needs above that of others. It may seem right to you that God wants us to be happy so we can choose things that make us happy, but what about the other party who will be hurt by our pursuit of happiness? Does God teach us to pursue happiness at the expense of others' happiness? God forbid!
It doesn't matter if this brother made a right or wrong choice to marry his wife, but since he already did marry, is there not a responsibility on him to take care of and honor this marriage? If not, why would the Lord give us a command not to divorce our spouse other than for fornication? Everything that the Lord commands are for our good, issued out of His love and concern for all of us, should we not then obey Him for our own good and the good of our neighbors? We are commanded to love our neighbors as ourselves, not to love ourselves above our neighbors. Is it right, then, for us to ignore the well-being of other people, and to pursue such a happiness with the misguided thinking that God will allow us to do so because it makes us happy despite the other party suffering as a result? Do you think with such a selfish attitude in us, we would even be worthy of asking for forgiveness from our God?
The Lord allowed us to pray for forgiveness, because He knows our weaknesses and the difficulties in walking a holy life. We do stumble into sin occasionally, and thus we repent immediately and receive His forgiveness. But if we go on to sin wilfully, and purposely lay aside the Lord's commands so that our fleshly desires are gratified, do you think we will ever think of truly repenting? Every wilful sin we commit against God hardens our hearts against Him, and we sear our consciences by doing such wickedness. The more we sin wilfully, the more we harden our hearts and sear our consciences, until we no longer hear God in our life anymore. It is possible that we by wilful sinning grieve the Holy Spirit of God away and thus leave us void of the Spirit of God. And if we no longer have the Holy Spirit whom is sealed in us for redemption, do we still think we will be able to receive Salvation? Remember the stern warning of the apostle:
For if after they have escaped the pollutions of the world through the knowledge of the Lord and Saviour Jesus Christ, they are again entangled therein, and overcome, the latter end is worse with them than the beginning. For it had been better for them not to have known the way of righteousness, than, after they have known it, to turn from the holy commandment delivered unto them. But it is happened unto them according to the true proverb, The dog is turned to his own vomit again; and the sow that was washed to her wallowing in the mire.
(2 Peter 2:20-22)
Do you not realise, brother, that apostle Peter is talking about believers here, who wilfully sinned until the point they lost their salvation? These believers once separated themselves from the sinful world through knowing Jesus Christ, but they later turned back into their old sinful ways and are again overcome. How? Because they turned away from the commandments of the Lord and engaged in their own desires, despite knowing that their deeds are sin. They hardened their hearts and seared their consciences by continually and actively forsaking the Lord's commands, until they've stopped repenting and completely grieved the Holy Spirit of God away. What will be their end? Hebrews depicts it clearly, which I also quoted in my previous posts:
For if we sin wilfully after that we have received the knowledge of the truth, there remaineth no more sacrifice for sins, But a certain fearful looking for of judgment and fiery indignation, which shall devour the adversaries.
Knowing such consequences that could result from wilful sinning, how then can I say towards this brother that it is ok for him to commit adultery against his wife and himself despite knowing that it is a sin? How can I encourage a brother to wilfully and actively rebel against God's holy commandments which is for our good? Do you not realise that you are ruining a brother's soul by encouraging him to commit a wilful sin against God? Do you not know how wrong you are thinking that you are offering him comfort of heart but in fact your advice could make him guilty for life and even lose his Salvation? Repent of what you have just done, my brother, and let God reveal to you the state of your heart before Him! I urge you to do so in the love of Christ!