Cross reference
Psalms 37:30
30 The mouth of the righteous talks of wisdom. His tongue speaks justice.
Proverbs 25:11-13
11 A word fitly spoken Is like apples of gold in settings of silver.
12 As an ear-ring of gold, and an ornament of fine gold, So is a wise reprover to an obedient ear.
13 As the cold of snow in the time of harvest, So is a faithful messenger to those who send him; For he refreshes the soul of his masters.
Psalms 71:15
15 My mouth will tell about your righteousness, And of your salvation all day, Though I don't know its full measure.
Colossians 4:6
6 Let your speech always be with grace, seasoned with salt, that you may know how you ought to answer each one.
Ephesians 4:29
29 Let no corrupt speech proceed out of your mouth, but such as is good for building up as the need may be, that it may give grace to those who hear.
Matthew 12:35
35 The good man out of his good treasure brings out good things, and the evil man out of his evil treasure{TR adds "of the heart"} brings out evil things.
Proverbs 27:9
9 Perfume and incense bring joy to the heart; So does earnest counsel from a man's friend.
Proverbs 15:7
7 The lips of the wise spread knowledge; Not so with the heart of fools.
Proverbs 10:31
31 The mouth of the righteous brings forth wisdom, But the perverse tongue will be cut off.
Proverbs 10:21
21 The lips of the righteous feed many, But the foolish die for lack of understanding.
Psalms 71:24
24 My tongue will also talk about your righteousness all day long, For they are disappointed, and they are confounded, who want to harm me.
Deuteronomy 6:7-9
7 and you shall teach them diligently to your children, and shall talk of them when you sit in your house, and when you walk by the way, and when you lie down, and when you rise up.
8 You shall bind them for a sign on your hand, and they shall be for symbols between your eyes.
9 You shall write them on the door-posts of your house, and on your gates.