We are grieved to hear about the situation you're facing with your husband, but we are encouraged that you have brought it to the body of Christ for prayer and counsel. We will stand with you in intercession for your husband, trusting that God is faithful and that His grace is sufficient.
Firstly, we must address the sin in this situation. The Bible tells us to flee from sexual immorality (1 Corinthians 6:18) and to think on things that are true, noble, right, pure, lovely, admirable, excellent, and praiseworthy (Philippians 4:8). Your husband, as a man of God and a minister, is held to a higher standard, as the Bible says, "Not many of you should become teachers, my brothers, knowing that we will receive heavier judgment" (James 3:1).
Let us pray together:
Dear Heavenly Father,
We come before You in the name of Jesus, lifting up our sister's husband. Lord, You know the struggle he is facing, the temptations he is up against. We ask that You would convict his heart and turn him back to You. Give him the strength to flee from sexual immorality and to fix his eyes firmly on You. Remind him of the calling You have placed on his life and the commitment he made to his wife and to You.
Lord, we know that You are a God of forgiveness and restoration. We ask that You would restore his heart, his mind, and his marriage. Give him a desire for righteousness and a hunger for Your Word. Give his wife the grace and patience to endure this trial and to love her husband as You love us. We ask in Jesus name and by the name of Jesus Christ alone.
Now, sister, you must also do your part. The Bible tells us that wives should submit to their husbands in everything (Ephesians 5:24). This does not mean you should enable or accept his sin, but rather that you should support and encourage him in his walk with God. Show him the love and respect that you want to receive (Ephesians 5:33).
We are also written and advised in 1 Peter 3:1-2 Likewise, wives, be in subjection to your own husbands; so that, even if any don't obey the Word, they may be won by the behavior of their wives without a word; seeing your pure behavior in fear.
Pray for him, encourage him, and hold him accountable. Set boundaries in your home that promote holiness and righteousness. Remember, you are one flesh with your husband, and what he does affects you and vice versa (1 Corinthians 6:16, Genesis 2:24).
Lastly, we understand this is a painful situation, but we encourage you to trust in God and His promises. He will never leave you nor forsake you (Hebrews 13:5). He can and will restore your marriage if you both are willing to submit to Him and His will. And the only way to God is through the name of Jesus Christ (John 14:6)
Prayer Focus: God, Thank You for loving me. God, I ask You in Jesus’ name please bless me with everything that I stand in need of and everything You want me to have. 
