Here are some verses for you.
Deuteronomy 21:23
His body shall not remain all night upon the tree, but thou shalt in any wise bury him that day; (for he that is hanged is accursed of God
that thy land be not defiled, which the LORD thy God giveth thee for an inheritance.
Not necessarily abotu suicide, but many suicides, especially before guns and drugs, were carried out in this fashion.
Matthew 27:5
And he cast down the pieces of silver in the temple, and departed, and went and hanged himself.
Judas of course not being able to bear the guilt of turning the Messiah over tot he Jews hung himself.
Leviticus 19:28
You shall not make any cuts on your body for the dead or tattoo yourselves: I am the Lord.
2 Timothy 1:7
For God gave us a spirit not of fear but of power and love and self-control.
Proverbs 8:36
But he who fails to find me injures himself; all who hate me love death.”
1 Corinthians 6:19-20
Or do you not know that your body is a temple of the Holy Spirit within you, whom you have from God? You are not your own, for you were bought with a price. So glorify God in your body.