What does Proverbs 5:18 mean?
Continuing the analogy of a spouse—in this case, a man's wife—as a well of refreshing water, Solomon advises his students to take joy in that relationship. Earlier verses implied that part of the joy of sexuality in a marriage was the sense of care and legitimacy it brings (Proverbs 5:15).A husband should seek ways to bless his wife, so the two may live happily together. This counsel would include loving her, praying for her, and honoring her. Ephesians 5:25 commands: "Husbands, love your wives, as Christ loved the church and gave himself up for her." This verse teaches that a husband's love for his wife should be sacrificial. A loving husband puts his wife's interests ahead of his own.
First Peter 3:7 commands: "Husbands, live with your wives in an understanding way, showing honor to the woman as the weaker vessel, since they are heirs with you of the grace of life, so that your prayers may not be hindered." The husband ought to derive joy from his marriage, and from his commitment to it. Isaiah 62:5 compares the joy a bridegroom derives from his bride to God's rejoicing over His people.