If a Christian commits suicide, is he/she still saved?
gotquestions.org (article)
Jesus died for all of our sins, and if a true Christian, in a time of spiritual attack and weakness, commits suicide, his sin is still covered by the blood of Christ.
How to Battle Bitterness
John Piper (audio/article)
“Justice will be done. It may not be now, but you do not have to carry the load of vengeance.”