Introduction
One verse before the comforting 'I will never leave thee' (v. 5), the author exalts marriage and warns against sexual sin. Verse 5's contentment promise applies first inside the covenant v. 4 protects.
Historical Context
The first-century church faced two errors: Greco-Roman sexual permissiveness and ascetic groups that denigrated marriage (cf. 1 Tim 4:3). Verse 4 corrects both — marriage is honourable, and sex outside it is judged.
Original Language Insights
'Honourable' (timios) — precious, valuable, held in high esteem.
'Undefiled' (amiantos) — unstained. Marital intimacy is morally clean before God.
'Whoremongers' (pornoi) — sexually immoral.
'Adulterers' (moichoi) — violators of marriage covenants.
Theological Significance
God authored marriage in Eden and honours it still. Sexual intimacy is a covenant gift, not a casual experience. Verse 4 protects both the institution and the people who live within it — and warns those who would defile it.
Practical Application
Treat marriage — yours or others' — as something God calls 'honourable.' Guard the bed; flee sexual sin; build a culture in your home and church that exalts what God exalts.