Introduction
Right after Paul calls the church the temple of God (v. 16), he warns that anyone who tears it down will himself be torn down. The privilege is great; so is the responsibility.
Historical Context
The Corinthians had been splintering the church through factionalism, sexual immorality, and pride. Paul's warning is leveled at those who would destroy what God has built — including from within.
Original Language Insights
'Defile' and 'destroy' translate the same Greek verb (phtheirei) — measure for measure. The destroyer of God's temple is himself destroyed.
Theological Significance
God takes the wellbeing of His church seriously enough to defend it personally. Divisive teachers, predatory leaders, and persistent sin-mongers face a real Judge.
Practical Application
Build up your church; never tear it down. Even when correction is necessary, do it with the temple in mind, not against it.