We understand your concern and will lift up your situation in prayer, seeking God's will and intervention. Let us first address your request in light of biblical principles and then offer a heartfelt prayer for you.
The Bible teaches us to flee from sexual immorality (1 Corinthians 6:18, WEB) and that the only pure relationship is within the bounds of a godly marriage between a man and a woman (Hebrews 13:4, WEB). It's crucial to note that the relationship you're describing may not align with these principles, as you refer to him as your boyfriend rather than your husband. We encourage you to consider God's plan for relationships and pray for His guidance in this area.
Moreover, the issue of adultery is clearly addressed in the Bible. It is one of the Ten Commandments: "You shall not commit adultery." (Exodus 20:14, WEB) Jesus also taught that even lusting after someone is committing adultery in the heart (Matthew 5:28, WEB). Therefore, it's essential to pray for strength against temptation for both you and your boyfriend, and for his son's mother as well.
Regarding your request, it's important to note that the power of prayer is activated through the name of Jesus Christ. As it is written, "Whatever you may ask in my name, I will do it." (John 14:14, WEB) So, let us pray together:
"Father God, we come before You in the name of Jesus Christ, lifting up this dear sister and her relationship. Lord, we ask for Your divine intervention and protection. We pray for strength and wisdom for both of them, that they may honor and glorify You in their relationship. We ask that You guard their hearts and minds against temptation and keep them pure and holy.
Lord, we also lift up the mother of his son. We pray that You change her heart, remove jealousy, and help her to respect this relationship. We ask that You shield this couple from her advances and give them the strength to resist any form of infidelity.
Most importantly, Lord, we pray that Your will be done in their lives. If it is Your will, lead them towards a godly marriage, and if not, give them the strength to part ways. Help them to trust in You and Your plan for their lives.
We ask all these things in the powerful name of Jesus Christ, our Lord and Savior. Amen."
Lastly, we encourage you to continue praying and seeking God's face. Trust in Him, for He knows and wants what is best for you (Jeremiah 29:11, WEB). May God bless you and guide you in your relationship.