Many times when our faith is not mature in the Lord we tend to commit certain things that are wrong and we think that there is no forgiveness for us, and there are those who choose to get out of the way with the thought that they are no longer accepted before the Lord. I have known people like that, I remember once a friend who failed before the Lord and then never got up again, but this happens many times because we have not yet understood the depth of Christ’s love and the meaning of His death on the cross.
John wrote inspired by the Lord:
1 My dear children, I write this to you so that you will not sin. But if anybody does sin, we have an advocate with the Father—Jesus Christ, the Righteous One.
2 He is the atoning sacrifice for our sins, and not only for ours but also for the sins of the whole world.
3 We know that we have come to know him if we keep his commands.
1 John 2:1-3
The first thing is that we as Christians must do everything possible to not to sin, to keep ourselves in a full life and in holiness before the Lord. But, we must also understand that we are human and that we can make mistakes, but making mistakes is not a reason to isolate us from the Lord, to turn us away from these paths, but we must understand that in those moments we have a lawyer before God, which is Jesus Christ the righteous.