Matthew 12:35
The good person from his good treasury brings out good [things], and the evil person from his evil treasury brings out evil [things].
Proverbs 10:20-21
Choice silver is a tongue of righteousness, a heart of wickedness is {of little worth}.
Proverbs 25:11-12
Apples of gold in a setting of silver is a matter spoken at its proper time.
Matthew 13:52
And he said to them, "For this [reason] every scribe who has been trained for the kingdom of heaven is like the master of the house who brings out of his storeroom new [things] and old [things]."
Colossians 4:6
Let your speech always [be] with grace, seasoned with salt, so that [you] may know how it is necessary for you to answer each one.
Psalm 37:30-31
[The] mouth of [the] righteous utters wisdom, and his tongue speaks justice.
Proverbs 12:6
The words of the wicked [are] an ambush of blood, but the mouth of the upright delivers them.
Proverbs 12:17-19
He who will speak truth will reveal righteousness, but the witness of falsehood, deceit.
Proverbs 15:4
Gentleness of tongue is a tree of life, but perverseness in it [causes] a break in spirit.
Proverbs 15:23
Joy [belongs] to a man with answers in his mouth, and a word in its time, how good [it is]!
Proverbs 15:28
A heart of righteousness will ponder the answer, but a mouth of wickedness will pour out deceit.
Proverbs 16:21-23
The wise of heart is called perceptive, but he who is pleasant of lips will increase persuasiveness.
Matthew 12:34
Offspring of vipers! How are you able to say good things [when you] are evil? For from the abundance of the heart the mouth speaks.
Ephesians 4:29
{No rotten word must proceed} from your mouth, but only something good for the building up of the need, in order that it may give grace to those who hear,
Colossians 3:16
Let the word of Christ dwell in you richly, teaching and admonishing one another with all wisdom, with psalms, hymns, [and] spiritual songs, singing with thankfulness in your hearts to God,