The only people God ever forgives for anything are those whose names are written in the Lamb's Book of Life. Their names are in the Book of Life through the blood of Jesus Christ. Only these ones are forgiven of sins, never to be remembered. "He that overcometh, the same shall be clothed in white raiment; and I will not blot out his name out of the book of life, but I will confess his name before my Father, and before his angels." (Revelation 3:5) "And there shall in no wise enter into it any thing that defileth, neither whatsoever worketh abomination, or maketh a lie: but they which are written in the Lamb’s book of life." (Revelation 21:27)

     Because of God's Holiness, sin is sin and is in opposition to God.  "For whosoever shall keep the whole law, and yet offend in one point, he is guilty of all." (James 2:10) No sin is forgiven by God except they are washed in the blood of Christ. If you think about His forgiveness, God doesn't see the forgiven sins, because they were cleansed in Christ's blood. They are as though they never were. That is why God sees those in Christ as spotless and without sin. "For if the blood of bulls and of goats, and the ashes of an heifer sprinkling the unclean, sanctifieth to the purifying of the flesh: How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge your conscience from dead works to serve the living God? And for this cause he is the mediator of the new testament, that by means of death, for the redemption of the transgressions that were under the first testament, they which are called might receive the promise of eternal inheritance." (Hebrews 9:13-15)

     Suicide is premeditated murder caused by anxiety, fear, or despair. Christians have God's promise that He will keep them from reaching such depths of confusion. "For God hath not given us the spirit of fear; but of power, and of love, and of a sound mind." (2 Timothy 1:7) "But we have this treasure in earthen vessels, that the excellency of the power may be of God, and not of us. We are troubled on every side, yet not distressed; we are perplexed, but not in despair; Persecuted, but not forsaken; cast down, but not destroyed; Always bearing about in the body the dying of the Lord Jesus, that the life also of Jesus might be made manifest in our body." (2 Corinthians 4:7-10)

      "But we know that the law is good, if a man use it lawfully; Knowing this, that the law is not made for a righteous man, but for the lawless and disobedient, for the ungodly and for sinners, for unholy and profane, for murderers of fathers and murderers of mothers, for manslayers, For whoremongers, for them that defile themselves with mankind, for menstealers, for liars, for perjured persons, and if there be any other thing that is contrary to sound doctrine; According to the glorious gospel of the blessed God, which was committed to my trust." (1 Timothy 1:8-11)