Proverbs 10:20 reinforces the contrast: righteous tongue is choice silver, wicked heart worthless — similar value judgment on speech and heart.

Proverbs 10:21 adds that righteous lips feed many, while fools die for lack of sense — expanding the life-giving effect of wise speech.

Proverbs 22:18 speaks of keeping wisdom within and fitting on lips—connecting to the wise spreading knowledge from the heart.

Proverbs 20:15 calls lips of knowledge a precious jewel—reinforcing the high value of wise speech that spreads knowledge.

Proverbs 10:11 calls the righteous mouth a fountain of life — amplifying how wise speech spreads life-giving knowledge.

In Proverbs 12:18, the tongue of the wise brings healing—parallel to spreading knowledge here. Both contrast wise and harmful speech.

Proverbs 16:21 says sweetness of lips increases learning—directly echoing the wise spreading knowledge. Same theme of wise speech teaching.

Proverbs 5:2 says lips guard knowledge — a complementary action to spreading it, both involving wise use of speech.

In Matthew 28:18-20, the Great Commission commands teaching all nations — the ultimate act of spreading knowledge.

Matthew 12:34 explains that speech flows from heart abundance — linking the heart condition to what lips produce, as in the proverb.

In Ephesians 4:29, Paul urges speech that builds up and gives grace — a specific application of wise lips spreading knowledge.

In Ecclesiastes 12:9, the Teacher taught the people knowledge, exactly illustrating the wise spreading knowledge in Proverbs.

In Psalm 119:13, the psalmist declares God's rules with lips—a precise parallel to the wise spreading knowledge from their lips.

In Psalm 78:2-6, the psalmist tells parables and God's deeds to the next generation, directly exemplifying the wise spreading knowledge.

In Psalm 37:30, the righteous mouth utters wisdom and justice, directly mirroring the wise spreading knowledge from their lips.

Job 33:3 declares that upright heart produces sincere lips — directly echoing the proverb's link between heart and wise speech.

Deuteronomy 6:7 commands diligent teaching of God's words — a specific application of spreading knowledge that the proverb commends.

James 3:6 warns the tongue is a fire of unrighteousness — contrasting the wise spread of knowledge with the tongue's destructive potential.

In Matthew 10:27, Jesus commands proclaiming in the light what is whispered — echoing the wise spreading knowledge openly.

Job 4:3 recalls Job instructing many — an example of a wise person spreading knowledge as described in the proverb.