Psalm 39:1
{To the chief Musician, to Jeduthun. A Psalm of David.} I said, I will take heed to my ways, that I sin not with my tongue: I will keep my mouth with a muzzle, while the wicked is before me.
1 Kings 2:4
that Jehovah may confirm his word which he spoke concerning me, saying, If thy sons take heed to their way, to walk before me in truth with all their heart and with all their soul, there shall not fail thee, said he, a man upon the throne of Israel.
2 Kings 10:31
But Jehu took no heed to walk in the law of Jehovah the God of Israel with all his heart; he departed not from the sins of Jeroboam, who made Israel to sin.
1 Chronicles 16:41
and with them Heman and Jeduthun, and the rest that were chosen, who were expressed by name, to give thanks to Jehovah, because his loving-kindness endureth for ever;
Job 2:10
But he said to her, Thou speakest as one of the foolish women speaketh. We have also received good from God, and should we not receive evil? In all this Job did not sin with his lips.
Psalm 62:1
{To the chief Musician. On Jeduthun. A Psalm of David.} Upon God alone doth my soul rest peacefully; from him is my salvation.
Psalm 119:9
BETH. Wherewithal shall a young man cleanse his path? by taking heed according to thy word.
Psalm 141:3
Set a watch, O Jehovah, before my mouth; keep the door of my lips.
1 Chronicles 25:1-6
And David and the captains of the host separated for the service those of the sons of Asaph and of Heman and of Jeduthun who were to prophesy with harps and lutes and cymbals; and the number of the men employed according to their service was:
Psalm 12:4
Who have said, With our tongue will we prevail, our lips are our own: who is lord over us?
Psalm 34:13
Keep thy tongue from evil, and thy lips from speaking guile;
Psalm 73:8-9
They mock and speak wickedly of oppression, they speak loftily:
Psalm 77:1
{To the chief Musician. On Jeduthun. Of Asaph. A Psalm.} My voice is unto God, and I will cry; my voice is unto God, and he will give ear unto me.
Proverbs 4:26-27
Ponder the path of thy feet, and let all thy ways be well-ordered.
Proverbs 18:21
Death and life are in the power of the tongue, and they that love it shall eat the fruit thereof.
Proverbs 21:23
Whoso keepeth his mouth and his tongue keepeth his soul from troubles.
Amos 5:13
Therefore the prudent shall keep silence in this time; for it is an evil time.
Micah 7:5-6
Believe ye not in a companion, put not confidence in a familiar friend: keep the doors of thy mouth from her that lieth in thy bosom.
Colossians 4:5
Walk in wisdom towards those without, redeeming opportunities.
Hebrews 2:1
For this reason we should give heed more abundantly to the things we have heard, lest in any way we should slip away.
James 1:26
If any one think himself to be religious, not bridling his tongue, but deceiving his heart, this man's religion is vain.
James 3:2-8
For we all often offend. If any one offend not in word, he is a perfect man, able to bridle the whole body too.