Proverbs 1:13

We shall find all precious substance
Among one or another we meet with; gold and silver and precious stones, everything that is valuable; not considering that hereby they were in danger of losing the more precious substance, their immortal souls; and the most precious substance of all, the enjoyment of God, and happiness with him to all eternity, which is the "more enduring substance": the things of this world, properly speaking, are not substance, though wicked men so judge them; they are things that are not; nor are they "precious", in comparison of spiritual and heavenly things; but they are what carnal men set a high price and value upon, and risk the loss of their name, lives, and souls for;

we shall fill our houses with spoil;
Aben Ezra interprets this of garments; but it may not only design the garments taken from the persons robbed and killed; but also their money, commodities, and goods they were travelling with, which in time would be so large as to fill everyone of their houses; covetousness lies at the bottom of all this wickedness; the love of money is the root of all evil.