There is also Acts 16:30-31 (NRSV)
The context is when the Paul & Silas were arrested and being held in jail. There is an earthquake which opened the cell and the jailer was terrified, thinking his prisoners had escaped. But they remained in their cell.
"Then he brought them outside and said, “Sirs, what must I do to be saved?” They answered, “Believe on the Lord Jesus Christ, and you will be saved, you
and all your household.”
Taken with the 1 Corinthians passage, it would seem to indicate that whole households are saved by one believing member - By your faith, by your prayers and by your witness, you will bring him to the Lord.
Ask St. Monica, who prayed endlessly for her son, again for help with your son. Persevere with prayer and Trust in the Lord.
catholic-forum.com/saints/saintm04.htm
catholic.org/saints/saint.php?saint_id=1
I also offer this prayer from St. Faustina for homeless children:
Eternal Father… reach out with Your tender love and mercy, to those pitiful children who wander the streets at night…especially Steven.
With Your unfathomable love and mercy, bring them back to their families, or to a home You choose for them.
Jesus…through Your Divine Mercy, enable us to help these poor children, with our deeds and with our prayers.
Holy Spirit…lead many to reach out in love to poor children in distress.
Mother Mary…send your mother’s love to those poor children who have never really known the love and tenderness of an earthly mother.
I like to add:
[St. Joseph…send your father’s love to those poor children who have never really known the love and tenderness of an earthly father.]
We unite this prayer with all the prayers of Divine Mercy offered to the Eternal Father this day for the lonely, distressed and homeless children and people of the world.
Through
Jesus Christ…Our Lord.
Amen
And this one:
Prayer for the Release of a Loved One from Alcohol or Drug Addiction Through The Divine Mercy and Blood of Jesus:
Lord Jesus, I put myself into Your hands. This day, I ask You with all my heart, to cure the terrible addiction to alcohol(drugs) in Steven.
Create in them an intolerance for alcohol(drugs) that will prevent them from ever offending those who love them again.
And grant their loved ones the grace to forgive them for all the hurt they have caused.
Through the Divine Mercy and Blood of Jesus, I also pray that they will be healed of all withdrawal symptoms of this terrible affliction.
I sincerely ask this, in the name of Jesus.
Amen