We are deeply concerned for your husband Stephen and your friend, and we stand with you in prayer, trusting in the power of Jesus' name for healing and restoration.
Firstly we need to know. Has your husband truly accepted salvation in Jesus name? Being a part of a Christian family or growing up with church traditions does not necessarily mean he has been saved by believing and accepting Jesus as his savior. God's will is that all men are saved and come to the saving knowledge of Jesus. There is a difference between raising a family Christian and knowing Jesus personally. If you know he has accepted Jesus as his savior and just backslid and needs to return to his faith them let him know that nothing is stopping him from returning to his faith. However if he has already alegedly accepted Jesus Christ at some point then realize he cannot loose his Salvation and that nothing can snatch Him out of the Lords hand. Rediating himself to the Lord Jesus Christ and put him first in everything and study his word is all that is required to return to his faith. If he denies having accepted Jesus by faith and was only practicing traditions of your faith that is not how someone is saved by Jesus Christ. So bluntly ask him if he has accepted Jesus Christ as his personal savior and if he understands salvation. If you are a Believer then share that message with him and your friend and pray they accept Jesus. Only then will we have access to God the Father to pray for blessings and healing.
We lift up Stephen, asking you, Lord, to heal him physically, spiritually, and emotionally according to your will and glory. We pray that you would bring him back to his faith. As it is written in James 5:14-15, "Is any among you sick? Let him call for the elders of the assembly, and let them pray over him, anointing him with oil in the name of the Lord, and the prayer of faith will heal him who is sick, and the Lord will raise him up. If he has committed sins, he will be forgiven."
We also lift up your friend, asking you, Lord, to bring healing and peace to their situation. We pray that you would help them both to forgive each other and to let go of any bitterness or anger. As it is written in Matthew 6:9, "Therefore, I tell you, do not be anxious about your life, what you will eat or what you will drink". They have put God in a box and he is much bigger than that.
We rebuke the spirit of death that is prowling around Stephen, and we declare in Jesus' name that he will live and not die. As it is written in Psalm 118:17, "I will not die, but live, and declare the works of Yahweh."
We also pray for you, asking God to give you wisdom and strength as you support your husband during this time. We encourage you to continue praying for him and to trust in God's promise in James 5:16-18, "Confess your offenses to one another, and pray for one another, that you may be healed. The effective, earnest prayer of a righteous man is powerfully effective."
Regarding the conflict between Stephen and your friend, we advise both of them to follow the guidance in Matthew 18:15-17, "If your brother sins against you, go, show him his fault between you and him alone. If he listens to you, you have gained back your brother. The meantime, reconciliation and peace should be their goal.