Ecclesiastes 5:3 notes a fool's voice is known by many words, similar to the fool's speech leading to ruin here.

Proverbs 10:31 reinforces the same contrast: wise speech brings forth wisdom; foolish speech leads to destruction.

In Proverbs 25:11, a word fitly spoken is like apples of gold — illustrating the beauty of gracious words from the wise in Ecclesiastes 10:12.

Proverbs 31:26 describes wise, kind speech—parallel to the wise man's gracious words here.

Proverbs 18:6-8 expands on how fools' lips bring strife and are their undoing, directly reinforcing the consequence of foolish speech.

In Proverbs 16:21-24, gracious words are called honeycomb, sweet to the soul — directly echoing the 'gracious' words from the wise in Ecclesiastes 10:12.

Luke 4:22 records Jesus speaking 'gracious words'—a direct example of the wise man's speech described here.

In Proverbs 15:2, the wise tongue commends knowledge while fools pour out folly — a direct parallel to gracious words versus self-consuming lips.

2 Samuel 1:16 shows the Amalekite's boastful words causing his own death—a case of a fool's lips swallowing him.

In Proverbs 12:18, rash words wound like swords while wise tongues heal — mirroring the gracious versus destructive speech of Ecclesiastes 10:12.

In Proverbs 12:14, the fruit of wise speech brings satisfaction — echoing the gracious words that flow from the wise.

In Proverbs 12:13, the same contrast: evil speech ensnares the speaker, while righteous speech brings escape — parallel to fools consumed by their own lips.

Proverbs 10:31 states the righteous mouth brings wisdom and the perverse tongue is cut off—parallel to the wise/fool outcome.

Proverbs 10:21 says righteous lips feed many while fools die for lack—identical to the fool's lips swallowing him.

Proverbs 10:20 compares the righteous tongue to choice silver, paralleling the value of gracious words from the wise.

Proverbs 10:14 says the mouth of a fool invites ruin, closely paralleling the idea that fools are consumed by their own lips.

Proverbs 10:13 contrasts wisdom in speech with punishment for folly, directly echoing the wise/fool lips contrast.

Proverbs 10:8 contrasts the wise who receive commands with a chattering fool who falls—echoing the ruin from foolish lips.

Psalm 140:9 prays that the mischief of enemies' lips covers them—same theme of speech backfiring on the speaker.

Psalm 64:8 says the wicked's tongue falls on themselves—a direct parallel to the fool's self-destructive speech.

Psalm 37:30 directly parallels the wise mouth speaking wisdom and justice, reinforcing the contrast with foolish speech.

Ephesians 4:29 commands gracious, edifying speech—contrasting corrupt talk, reinforcing the wise vs. fool theme.

Colossians 4:6 instructs speech always with grace—mirroring the wise man's gracious words here.

Proverbs 18:21 states death and life are in the tongue's power, directly underlying the principle that fool's lips bring self-destruction and wise words bring grace.

Proverbs 10:10 adds that a chattering fool comes to ruin, echoing the fate of the fool consumed by his own lips.

Matthew 12:35 shows speech as outflow of heart—wise words from good treasure, echoing the fool's self-destructive speech from evil.

Job 16:5 shows the wise use of speech to strengthen others, echoing the gracious words from the wise in Ecclesiastes.

Proverbs 12:23 similarly contrasts a prudent man who hides knowledge with a fool who proclaims foolishness, echoing the wise gracious vs fool self-destructive speech here.

In Luke 19:22, the master judges the servant by his own words, similar to the fool being consumed by his lips—a principle of self-condemnation.

In Proverbs 22:18, keeping wise words within and ready on lips reinforces the positive outcome of wise speech implied in Ecclesiastes 10:12.

In Proverbs 22:17, the call to hear and apply wise words complements Ecclesiastes 10:12's focus on the value of wise speech itself.

Proverbs 17:20 warns a perverse tongue falls into mischief, mirroring the fool's self-swallowing lips here.

Proverbs 15:28 parallels this: the righteous studies to answer, the wicked pours evil, reinforcing that wise speech is thoughtful and fool's speech destructive.

In Proverbs 15:23, a timely apt answer brings joy — similar to the gracious words of the wise that benefit both speaker and hearer.

Job 4:4 describes words that upheld the stumbling and strengthened feeble knees, mirroring the uplifting effect of wise speech.

1 Kings 12:13 shows Rehoboam answering harshly, which leads to the kingdom splitting—foolish speech causing ruin, parallel to Ecclesiastes.