The remission of sins
Pray for the remission of sins.
To invoke the Presence of the Lamb of God requires at least two people, who love God.
Jesus said, where two or three gather in My Name, there I am in their midst.
The forgiveness of sins requires the Lamb of God's Presence.
This is why private prayers, when alone, do not appear to be effective against the sin problem.
When you pray to the Father or in the Spirit these are best done alone.
But, as pertaining to sin, find another Christian and what two agree upon the sin is remitted.