“It is not selfish to take an interest in matters Jesus Himself has told us to be concerned about. It is not wrong to seek what He tells us to seek. It is wrong not to seek. It is, in fact, a sin to refuse to lay up heavenly treasure when we are explicitly commanded to do so. Moreover, the effects on our hearts of not doing it will be calamitous. For where our treasures are, there our hearts will be also.”