I write these things to you who believe in the name of God's Son so that you can know that you have eternal life.
References for 1 John 5:13
This is the confidence that we have in our relationship with God: If we ask for anything in agreement with his will, he listens to us.
If we know that he listens to whatever we ask, we know that we have received what we asked from him.
If anyone sees a brother or sister committing a sin that does not result in death, they should pray, and God will give life to them—that is, to those who commit sins that don't result in death. There is a sin that results in death—I'm not saying that you should pray about that.
Every unrighteous action is sin, but there is a sin that does not result in death.