I’m working on a question and found myself in a gray area. It deals with the sin of lust. My response relates lust to covetousness. Desiring your spouse is not sin because you have committed yourselves to each other before God and others (wedding). You can’t covet what is yours. An unmarried person entertaining thoughts of desire for another person is sinning. What about engagement and betrothal? Does Song of Songs suggest that entertaining such thoughts is okay for a betrothed couple? I appreciate your input.