We must begin marriage with a covenantal oath, and then never break our oath. Marriage portrays Christ and the church. As the husband and wife are physically united as one, Christ and the church are spiritually one. The way we live reflects on Christ and the church. We do not have the luxury of being able to say nothing about the church. Our lives always speak. Mental and physical infidelity lies to the world about the spiritual faithfulness of Jesus and his people. Immorality trashes the mystery of Christ and his church. It desecrates the holy.
R. Kent Hughes on sexual conduct in Set Apart, p. 83
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