The Bible mentions six specific people who committed suicide:

1. Abimelech (Judges 9:54),
2. Saul (1 Samuel 31:4),
3. Saul’s armor-bearer (1 Samuel 31:4–6),
4. Ahithophel (2 Samuel 17:23),
5. Zimri (1 Kings 16:18), and
6. Judas (Matthew 27:5).

Five of these men were noted for their wickedness (the exception is Saul’s armor-bearer—of whom nothing is said of his character). Some consider Samson’s death an instance of suicide, because he knew his actions would lead to his death (Judges 16:26–31), but Samson’s goal was to kill Philistines, not himself.

The Bible views suicide as equal to murder, which is what it is—self-murder. God is the only one who is to decide when and how a person should die. Psalms 31:15 declares—“My times are in your hands”. And Job 1:21 tells us God is the giver of life. He gives, and He takes away. Suicide, the taking of one’s own life, is ungodly because it rejects God’s gift of life. No man or woman should presume to take God’s authority upon themselves to end his or her own life.

Some people in Scripture felt deep despair in life;

1. Solomon, in his pursuit of pleasure, reached the point where he “hated life” (Ecclesiastes 2:17).
2. Elijah was fearful and depressed and yearned for death (1 Kings 19:4).
3. Jonah was so angry at God that he wished to die (Jonah 4:8) and
4. Even the apostle Paul and his missionary companions at one point “were under great pressure, far beyond our ability to endure, so that we despaired of life itself” (2 Corinthians 1:8).

Yet, none of these men committed suicide. To the contrary,

• Solomon learned to “fear God and keep his commandments, for this is the duty of all mankind” (Ecclesiastes 12:13).
• Elijah was comforted by an angel, allowed to rest, and given a new commission.
• Jonah received admonition and rebuke from God.
• Paul learned that, although the pressure he faced was beyond his ability to endure, the Lord can bear all things: “This happened that we might not rely on ourselves but on God, who raises the dead” (2 Corinthians 1:9)—Culled from Got Questions

So, according to the Bible, suicide or self-afflicted murder is a sin. Let’s carefully note Revelation 21:7-8 and Revelation 22:12-15, the clear statements made regarding murderers.

He that overcometh shall inherit all things; and I will be his God, and he shall be my son. But the fearful, and unbelieving, and the abominable, and murderers, and whoremongers, and sorcerers, and idolaters, and all liars, shall have their part in the lake which burneth with fire and brimstone: which is the second death. Revelation 21:7-8

And, behold, I come quickly; and my reward is with me, to give every man according as his work shall be. I am Alpha and Omega, the beginning and the end, the first and the last. Blessed are they that do his commandments, that they may have right to the tree of life, and may enter in through the gates into the city. For without are dogs, and sorcerers, and whoremongers, and murderers, and idolaters, and whosoever loveth and maketh a lie. Revelation 22:12-15

Furthermore, suicide definitely has a deep and lasting impact on those left behind. The painful scars left by a suicide do not heal easily. Whatever you face beloved, consider the plea made by the Lord in our text of today—“Are you weary, carrying a heavy burden? Come to me.  I will refresh your life, for I am your oasis.  Simply join your life with mine.  Learn my ways and you’ll discover that I’m gentle, humble, and easy to please. You will find refreshment and rest in me.  For all that I require of you will be pleasant and easy to bear.”  Would you turn to Him and prove these words?  May God grant His grace to each one who is facing trials today (Psalm 67:1). And may each of us take hope in the promise, “Everyone who calls on the name of the Lord will be saved” (Romans 10:13).

Shalom.