We are truly saddened to hear about the struggles your son and the mother of his children are facing. Firstly, we want to remind you of the power of prayer and the importance of bringing every concern and petition to God, as it says in Philippians 4:6-7 (WEB), "In nothing be anxious, but in everything, by prayer and petition with thanksgiving, let your requests be made known to God. And the peace of God, which surpasses all understanding, will guard your hearts and your thoughts in Christ Jesus."
However, we must address the fact that they do not believe in Jesus. It is crucial to understand that it is only through Jesus Christ that we can approach God, as Jesus Himself said in John 14:6 (WEB), "Jesus said to him, 'I am the way, the truth, and the life. No one comes to the Father, except through me.'" Therefore, we encourage you to fervently pray for their hearts to be opened to the truth of the Gospel.
As for the constant fighting, we must remind them of Ephesians 4:29-32 (WEB), "Let no corrupt speech proceed out of your mouth, but such as is good for building up as the need may be, that it may give grace to those who hear. Don’t grieve the Holy Spirit of God, in whom you were sealed for the day of redemption. Let all bitterness, wrath, anger, outcry, and slander be put away from you, with all malice. And be kind to one another, tenderhearted, forgiving each other, just as God also in Christ forgave you."
Let us pray together:
"Father, we lift up to You the son of Anonymous and the mother of his children. We ask that You would soften their hearts to receive the truth of the Gospel, that they may know the peace and love that comes from believing in Jesus Christ. We pray that You would bring harmony and understanding between them, that they may raise their children in a peaceful and loving environment. In Jesus' name, we pray. Amen."
Lastly, we encourage you to continue to stand in the gap for them, praying fervently and living a life that reflects the love of Christ. Your testimony can greatly impact their lives.