Proverbs 5:15 Commentary: The Cistern and Well of Marital Faithfulness

In ancient Israel, water was a precious and often scarce resource. A cistern was a man-made pit cut into rock or plastered to catch and store rainwater (2 Kings 18:31). A well, by contrast, tapped into an underground spring, yielding fresh, flowing water (Genesis 26:15, 20). Ownership of a cistern or well was a sign of stability, provision, and personal wealth. To drink from another’s well without permission was a violation of property and trust.

This everyday reality gives the metaphor its bite. The sage sets up two contrasting sources: the private, lawful cistern and well (one’s own spouse) versus the forbidden waters of the adulteress (described earlier as a “deep ditch” and “narrow pit,” Proverbs 23:27). Adultery in ancient Israel was not only a personal sin but a communal and covenantal breach, threatening the fabric of family and inheritance. The book of Proverbs consistently treats sexual fidelity as part of the broader wisdom tradition that builds life and honor, while folly tears them down.

The surrounding verses (16-18) extend the image of water to children and household blessing. Some commentators read verse 16 as a rhetorical question, “Should your springs overflow in the streets?”, warning against scattering one’s seed outside the marriage. Others see it as a positive picture of children flowing out as a blessing. Either way, the household is the God-ordained context for sexual expression, and the water metaphor grounds that teaching in a concrete, everyday reality every Israelite would understand.

The Hebrew text of Proverbs 5:15 is stable across the major manuscripts. The Septuagint renders bôr with angeiōn (vessels), interpreting the cistern as a container, which softens the specific cistern-vs-well distinction. The Syriac and Vulgate follow the MT closely. The consulted sources note no significant textual variants that affect the meaning of the verse.

Early Jewish interpretation, as seen in the Targum and later midrashim, read the cistern and well as figures for the wife and the home. Clement of Alexandria, cited by Gill, noted a law attributed to Plato that forbade drawing water from a neighbor’s well until one’s own was proven dry, an echo of the principle of contentment. The medieval Jewish commentator Jarchi (Rashi) interpreted the cistern as the Law of Moses, an allegorical reading that spiritualized the verse to refer to exclusive dependence on God’s instruction. In the Reformation tradition, Matthew Henry and the Geneva Bible kept the literal marital sense, applying it to faithful family life. Across centuries, the verse has been a touchstone for Christian marriage teaching, emphasizing the goodness of physical intimacy within God’s design.

Three-point outline

1. The source is personal. The cistern and well are “your own.” God does not forbid satisfaction; He orders it within a committed covenant. Faithfulness begins with gratitude for what is already given.
2. The satisfaction is plentiful. Running water (nōzəlîm) suggests not just enough but abundance, refreshment that overflows. Marital love is designed to satisfy fully, not leave one thirsting for more.
3. The command is active. “Drink” is an imperative. Fidelity is not merely the absence of adultery; it is the intentional cultivation of delight in your spouse.

Five-point outline

1. Recognize the temptation (vv.1, 14). The chapter opens with a vivid warning against the seductive woman.
2. Identify the God-given alternative (v.15). The “cistern” and “well” name the wife as the exclusive source of sexual satisfaction.
3. Know the difference between cistern and well (v.15). The distinction highlights quality, not just legality. Marital love is meant to be living water, not stale compliance.
4. Protect the boundaries (vv.16, 17). The streams and springs belong within the home, not scattered in the streets.
5. Cultivate joy (vv.18, 19). The passage ends not with a warning but with an invitation to be captivated by your spouse’s love.

Illustration hooks

• Owning a property with a private well versus relying on a shared, unreliable public tap. The difference between convenience and intimacy.
• A family that prides itself on preserving heirloom seeds each season, knowing they are the source of food for the year, compared to a neighbor who steals from others’ gardens.
• The simple act of drawing a glass of cold water from your own kitchen faucet: daily, ordinary, and taken for granted, until the water is shut off.

Questions your congregation is asking

• “What if my marriage feels more like a cistern, stale and stagnant, than a fresh, flowing well?”
• “Is it selfish to expect my spouse to satisfy my desires? What about seasons of illness or distance?”
• “I’m single. How does this verse apply to me? Do I just wait?”

Proverbs 5:15 uses a picture every ancient Israelite would understand: the difference between drawing water from your own cistern or well and stealing it from a neighbor’s. In a culture where water was life, the image carried weight. This passage invites us to consider where we look for satisfaction and how we guard the covenant commitments God has given us.

Discussion questions

1. Read Proverbs 5:15, 19. What do you notice about the repeated water imagery? What feelings or associations does water carry in this passage?
2. Why do you think the sage chooses two different words, cistern and well, instead of just one? How does the distinction between stored rainwater and a flowing spring shape the meaning?
3. Verse 16 is debated: is it a warning against spreading one’s waters publicly, or a picture of children as overflowing streams? What difference does each reading make for how we understand marriage and family?
4. In what practical ways can a married couple “drink water” from their own relationship? What habits or attitudes help keep that well from going dry?
5. How does this verse address the deeper human longing for love and satisfaction? What does it say about God’s design for human sexuality?
6. For those who are not married, how can this principle of “drinking from your own cistern” apply to other areas of life, purity, contentment, faithfulness in other commitments?
7. How does this passage connect to the broader biblical theme of living water (John 4:10, Jeremiah 2:13)? What does it tell us about God’s character and provision?