love and money

Hebrews 13:4-6

This part of the author's address is a series of exhortations to the audience. It is almost like the author is including a list of things that don't necessarily fit into the main argument of the address but are so important that they can't be left out. The author focuses on two very important issues in this section: sexual purity and money. It seems like the author uses a bit of hyperbole in these issues, perhaps because the exhortation is so brief.
In regards to marriage and adultery, the author states that the sexually immoral and the adulterer will be judged by God. Ultimately this is because sexual immorality and adultery offends the very character of God, especially the facets of purity, faithfulness and exclusivity. I'm not sure how to reconcile the judgment and the grace of God. I am very sure that the forgiveness of God is enough to cover sexual immorality. I am very sure that God's judgment is reserved for those who are unrepentant. Yet the author, addressing those who have repented, uses judgment as the motivation to avoid sexual immorality. Perhaps the argument is that if you are frequently engaging in sexual immorality is a sign that you may not actually have repented and your identity has not been changed from sexually immoral to child of God. In which case, you would still be under threat of the judgment of God.
This parallels what Jesus taught in the Sermon on the Mount; deal as harshly as necessary with lust because giving in to lust puts you in danger of being cast into hell. Again, the message, I think, is that if you are giving into lust constantly you may not be a true citizen of the kingdom and you (and I) are facing condemnation. This is not the teaching I am used to: I don't like to be motivated by fear and to motivate others by fear. It's not considered polite or politically correct. Yet, the author and Jesus make it clear: giving into sexual immorality endangers my soul.