Even if we remove mental illness claims away from the topic of suicide, there are those who claim Christian suicide is still possible in a “moment of weakness” or as a “split second decision”.  To be sure, that’s an extremely drastic decision to make in a snap. But if it were to occur, it would only prove that individual, even in that moment, rejected the sufficiency of God’s grace for us, as He says He is made strong in our weakness (1 Corinthians 12:9).  Even if someone took his/her own life in a “split second” decision, it doesn’t negate that the Lord, who calls His just to live by faith, says if someone so much as shrinks back, His soul takes no pleasure in them (Hebrews 10:38). One making this argument also has to contend with the fruit of patience and self-control we have as Believers born again of the Holy Spirit. So, again, a Christian making a snap decision to take his/her own life in a flash moment of despair is an interesting scenario.