For this is the will of God: your sanctification, that you abstain from sexual immorality,

 Paul lays down a great principle. The man who has lived and died in Christ is still in Christ even in death and will rise in him. Between Christ and the man who loves him there is a relationship which nothing can break, a relationship which overpasses death. Because Christ died and rose again, so the man who is one with Christ will rise again. 