Proverbs 18:4-7 expands on how words bring life or destruction, directly echoing the tongue's life-death power.

Proverbs 10:19 warns that many words lead to sin — reinforcing that the tongue's power can bring death through excess speech.

Proverbs 10:21 shows righteous lips nourishing many — a direct example of the tongue's life-giving power.

Proverbs 10:31 contrasts wisdom from the righteous with the perverse tongue cut off — illustrating life/death consequences.

Proverbs 11:30 speaks of the righteous as a tree of life and saving lives, aligning with the tongue's power to bring life.

Proverbs 12:14 parallels the fruit-of-speech theme: a man is satisfied with good from his mouth, echoing the principle of reaping what the tongue produces.

Proverbs 21:23 shows the protective side: keeping the mouth and tongue keeps one out of trouble, directly relating to the life/death power of speech.

Ecclesiastes 10:12-14 contrasts gracious wise words with foolish talk that swallows — illustrating the life/death fruit of the tongue.

2 Peter 2:18 describes false teachers using empty, swelling words to allure — showing the deadly seduction of the tongue.

James 3:6-9 expands on the tongue as a fire, capable of blessing and cursing — the same death-life duality as Proverbs.

Titus 1:11 warns that false teachers' mouths subvert whole households — illustrating the destructive power of the tongue.

Colossians 4:6 calls for speech seasoned with grace to answer rightly — showing how the tongue can bring life through gracious words.

Ephesians 4:29 contrasts corrupt speech with edifying words that impart grace — directly echoing the life-giving power of the tongue.

2 Corinthians 2:15 describes the gospel as an aroma of life or death — mirroring the tongue's dual power.

Romans 10:15 celebrates those who bring good news — the tongue's life-giving power in evangelism.

Romans 10:14 shows the necessity of spoken words for belief — the tongue brings life through hearing the gospel.

Matthew 12:35-37 teaches that words will be used in judgment — a clear parallel to the tongue's power of life and death.

Hosea 10:13 directly mentions 'eating the fruit of lies,' which parallels the proverb's consequence of loving the tongue's fruits—reaping what one sows.

Jeremiah 18:18 provides a concrete example of using the tongue for harm—plotting against Jeremiah, showing the 'death' aspect of speech power.

Psalm 52:2 says the tongue plots destruction like a sharp razor — directly illustrating the deadly power of words from Proverbs 18:21.

James 1:19 applies the wisdom: being quick to hear and slow to speak guards against the tongue's dangers, echoing Proverbs 18:21.

James 3:5 expands on the tongue's power, comparing it to a small fire that can cause great destruction, directly illustrating the death side.

Psalm 39:1 resolves to guard the tongue from sin — a personal commitment echoing the awareness of the tongue's power for death or life.

Psalm 34:13 counsels keeping the tongue from evil — a positive application of Proverbs 18:21, guarding speech to preserve life.

Job 19:2 laments being crushed by words — the destructive power of speech that can bring death-like torment, echoing Proverbs 18:21.

Psalm 140:11 prays against the slanderer — showing that evil speech leads to downfall, consistent with the tongue bringing death.

Psalm 12:3 asks God to cut off flattering lips — divine judgment on deceptive speech, consistent with the tongue's power to bring death.