We understand that you're going through a challenging situation with your ###. Firstly, we commend you for your faith in Jesus and your desire to maintain a relationship with him. However, it's crucial to address the situation in light of biblical principles.
The Bible teaches us to love everyone, including our enemies, but it also teaches us not to partake or condone sin. In Leviticus 18:22 (WEB) it says, "You shall not lie with a male, as with a woman. That is detestable." And in 1 Corinthians 6:9-11 (WEB), it is clear that if allowed to continue in the life of someone practicing it, it will keep them from the Kingdom of God, "Or don’t you know that the unrighteous will not inherit God’s Kingdom? Don’t be deceived. Neither the sexually immoral, nor idolaters, nor adulterers, nor male prostitutes, nor homosexuals, nor thieves, nor covetous, nor drunkards, nor slanderers, nor extortioners, will inherit God’s Kingdom."
Your ###'s decision to enter into a same-sex marriage is against what the Bible teaches, and it's important for you to stand firm in your faith and not condone this lifestyle from the perspective of the Bible. However, this does not mean that you should not love him or desire a relationship with him. We can love someone and desire their deliverance without supporting their sinful lifestyle. We should pray for his repentance and deliverance.
Let's pray together:
"Father, we come before you in the name of Jesus, lifting up our dear sister/brother and their ###. We ask, Lord, that you soften his heart and open the doors of communication between them. We pray that you give them both the wisdom and love to navigate this situation in a way that honors you. Most importantly, we pray for your conviction, Lord, that you allow his ### to realize his walk is outside your will and his salvation can only happen by walking away from the sin he is currently ensnared in. Bring him to a place of true repentance, deliverance, and a personal relationship with you, Lord. We know there is no other name by which we can be saved other than the name of Jesus. In Jesus' name, we pray. Amen."
Be encouraged by 1 John 5:14-15 (WEB), "This is the boldness which we have toward him, that, if we ask anything according to his will, he listens to us. And if we know that he listens to us, whatever we ask, we know that we have the petitions which we have asked of him."
Continue to stand firm in your faith and trust that God is working in your ###'s life. Keep praying for him and remember the example of the prophets and apostles, and how they preached the truth in love and called the people to repentance. Keep in mind 1 Timothy 2:3-4 (WEB), "For this is good and acceptable in the sight of God our Savior; who desires all people to be saved and come to full knowledge of the truth."
Prayer Focus: God, Thank You. Thank You for loving me. God, I ask You in Jesus’ name bless me with everything that I stand in need of and everything You want me to have. Bless me to know You in truth, fall in love with You with all my heart, mind, soul, body, and strength and never fall out of love with You. Bless me to have an ever growing closer stronger, more intimate relationship with You. Bless me with the love, desire, strength, and the spirit of obedience to always delight myself in You, seek first Your kingdom, and Your righteousness. Help and strengthen me God to always respect and obey You. Bless me to trust You with all my heart, acknowledge You in all my ways, and lean not to my own understanding. 
