Proverbs 12:18 (NIV)
The words of the reckless pierce like swords, but the tongue of the wise brings healing.
Matthew 12:36-37 (NIV)
36But I tell you that men will have to give account on the day of judgment for every careless word they have spoken.
37For by your words you will be acquitted, and by your words you will be condemned.”
Proverbs 15:4 (ESV)
A gentle tongue is a tree of life, but perverseness in it breaks the spirit.
Psalm 23:1-3 (NIV)
1The Lord is my shepherd, I shall not be in want.
2He makes me lie down in green pastures, he leads me beside quiet waters,
3he restores my soul. He guides me in paths of righteousness for his name’s sake.