Proverbs 18:21 Death and life are in the power of the tongue: and they that love it shall eat the fruit thereof.
1 Peter 3:10 For, Whoever would love life and see good days must keep their tongue from evil and their lips from deceitful speech.
Proverbs 13:3 The one who guards his mouth preserves his life; The one who opens wide his lips comes to ruin.
Proverbs 21:23 He who guards his mouth and his tongue, Guards his soul from troubles.
Psalms 141:3 Set a guard over my mouth, LORD; keep watch over the door of my lips.
Ephesians 4:29 Let no corrupting talk come out of your mouths, but only such as is good for building up, as fits the occasion, that it may give grace to those who hear.
James 3:3-5 If we put bits into the mouths of horses so that they obey us, we guide their whole bodies as well. Look at the ships also: though they are so large and are driven by strong winds, they are guided by a very small rudder wherever the will of the pilot directs. So also the tongue is a small member, yet it boasts of great things. How great a forest is set ablaze by such a small fire!
James 1:26 If anyone thinks himself to be religious and does not bridle his tongue but deludes his own heart, this person’s religious service is worthless (futile, barren).
Mark 11:23 For verily I say unto you, That whosoever shall say unto this mountain, Be thou removed, and be thou cast into the sea; and shall not doubt in his heart, but shall believe that those things which he saith shall come to pass; he shall have whatsoever he saith.
2 Corinthians 4:13 We having the same spirit of faith, according as it is written, I believed, and therefore have I spoken; we also believe, and therefore speak;
Proverbs 12:18 There is one whose rash words are like sword thrusts, but the tongue of the wise brings healing.
Ephesians 4:25 Therefore, having put away falsehood, let each one of you speak the truth with his neighbor, for we are members one of another.
Matthew 12:34-37 You brood of vipers! How can you speak good, when you are evil? For out of the abundance of the heart the mouth speaks. The good person out of his good treasure brings forth good, and the evil person out of his evil treasure brings forth evil. I tell you, on the day of judgment people will give account for every careless word they speak, for by your words you will be justified, and by your words you will be condemned.
Psalm 49:3 My mouth shall speak wisdom; the meditation of my heart shall be understanding.
Luke 6:45 A good man brings good things out of the good stored up in his heart, and an evil man brings evil things out of the evil stored up in his heart. For the mouth speaks what the heart is full of.
Romans 10:9 If you declare with your mouth, “Jesus is Lord,” and believe in your heart that God raised him from the dead, you will be saved.
Psalm 19:14 May these words of my mouth and this meditation of my heart be pleasing in your sight, Lord, my Rock and my Redeemer.
Colossians 3:17 And whatever you do, whether in word or deed, do it all in the name of the Lord Jesus, giving thanks to God the Father through him.
Psalm 33:6 By the word of the Lord the heavens were made, their starry host by the breath of his mouth.
Psalm 34:13 Keep your tongue from evil and your lips from telling lies.