We see a collection of various laws given here it might appear a bit random in their arrangement, which would be totally fine, there is a theme - guidance for the promotion and prolonging of life. Where the world, apart from Christ, embraces death, loves death, and longs to apply death to others and to themselves; The Lord would have us, as his holy congregation, be about the business of helping one another to guard, to promote, and to prolong life as a gift from him.