Bible Study Proverbs 27
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Proverbs 27 · WEB

Iron Sharpens Iron

Listen — WEB narration 0:00 / 0:00 Narration: World English Bible (David Williams), public domain — AudioTreasure.

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Don't boast about tomorrow, for you don't know what a day may bring.
2Let another man praise you, and not your own mouth; a stranger, and not your own lips.
3A stone is heavy, and sand is a burden, but a fool's provocation is heavier than both.
4Wrath is cruel, and anger is overwhelming; but who is able to stand before jealousy?
5Better is open rebuke than hidden love.
6Faithful are the wounds of a friend; although the kisses of an enemy are profuse.
7A full soul loathes a honeycomb, but to a hungry soul, every bitter thing is sweet.
8As a bird that wanders from her nest, so is a man who wanders from his home.
9Perfume and incense bring joy to the heart; so does earnest counsel from a man's friend.
10Don't forsake your friend and your father's friend. Don't go to your brother's house in the day of your disaster. Better is a neighbor who is near than a distant brother.
11My son, be wise, and bring joy to my heart, so that I can answer whoever reproaches me.
12A prudent man sees danger and takes refuge; but the simple pass on, and suffer for it.
13Take a man's garment when he puts up collateral for a stranger; hold it in pledge for a wayward woman.
14He who blesses his neighbor with a loud voice early in the morning, it will be taken as a curse by him.
15A continual dripping on a rainy day and a contentious wife are comparable;
16restraining her is like restraining the wind, or like holding oil in his right hand.
17As iron sharpens iron, so one man sharpens another.
18Whoever tends a fig tree shall eat its fruit. He who looks after his master shall be honored.
19As water reflects a face, so a man's heart reflects the man.
20Sheol and Abaddon are never satisfied; neither are the eyes of man.
21The crucible is for silver, and the furnace for gold; likewise, a man is tested by his praise.
22Though you grind a fool in a mortar with grain, yet his folly will not depart from him.
23Know well the state of your flocks, and pay attention to your herds;
24for riches are not forever. Does a crown endure to all generations?
25The hay is removed and the new growth appears, and the grasses of the mountains are gathered in.
26The lambs are for your clothing, the goats are the price of a field,
27and there is goat's milk enough for your food, for the food of your household, and nourishment for your servant girls.
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Summary

Proverbs 27 is rich in relational wisdom. It contains the most famous one-liner about friendship — "iron sharpens iron, so one man sharpens another" (v. 17) — alongside other gems: the open rebuke better than hidden love (v. 5), the faithful wounds of a friend versus the profuse kisses of an enemy (v. 6), and the testing of a man by how he responds to praise (v. 21). The chapter closes with a pastoral poem commending attentiveness to your flock and your real economic base.

Themes

  • True friendship as sharpening, wounding, and openly rebuking
  • Praise as a test of character — more revealing than hardship
  • The insatiable nature of eyes and Sheol — the problem of desire without limit
  • Proximity and attentiveness as forms of faithfulness — in relationships and in work
  • The heart as the mirror of the person — you are what you love

Key verses

  • Prov 27:17 — “As iron sharpens iron, so one man sharpens another.”
  • Prov 27:19 — “As water reflects a face, so a man's heart reflects the man.”
  • Prov 27:6 — “Faithful are the wounds of a friend; although the kisses of an enemy are profuse.”

Context & background

Proverbs 27:17 is one of the most quoted friendship proverbs in Christian community culture. Iron sharpening iron requires friction — both pieces are harder for the encounter. True friendship involves welcome friction, honest challenge, and the willingness to be sharpened and to sharpen. The "faithful wounds" of verse 6 extend this: a friend's truthful word may hurt but it comes from faithfulness. The enemy's profuse kisses are the opposite — flattery that is actually harmful. Verse 21 — "a man is tested by his praise" — is unexpected: hardship is the more commonly expected test. But Proverbs sees praise as equally revealing: how you handle being honored reveals your humility or pride. The pastoral ending (vv. 23-27) commends *paying attention* to what you actually have and tend — the concrete, the local, the daily.

Cross-references

  • 2 Corinthians 10:18 — "it is not the one who commends himself who is approved, but the one whom the Lord commends" — v. 2
  • Hebrews 10:24-25 — "spur one another on toward love and good deeds" — v. 17's sharpening
  • James 4:13-14 — "you do not even know what will happen tomorrow" — v. 1's humility about tomorrow
  • Matthew 5:37 — honest speech — v. 5-6's preference for open rebuke over hidden love
  • Romans 1:21-32 — insatiable desire — v. 20's eyes never satisfied

Check your reading

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  1. Observe

    What does v. 6 contrast?

  2. Observe

    What does v. 21 say about praise as a test?

  3. Interpret

    What does iron-sharpening-iron suggest about friendships?

  4. Interpret

    Can one know oneself without examining the heart?

  5. Apply

    Who tells one hard truth, and to whom does one tell it?

  6. Apply

    What are one's "flocks" requiring attentive oversight?

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