Kaisipang Hudyo sa Mga Awit 23:2: Duties

(2) The alchemist must perform actions and follow procedures without which he cannot successfully complete his goal. It is even possible that the fumes and odors will cause his death, along with the long work and great effort with them day and night. But one who trusts in G-d is secure against mishaps, and his heart is assured against future (potential) bad things. Whatever comes to him from G-d, he will accept with joy and gladness and his livelihood comes to him peacefully, quietly, and happily, as written "He causes me to lie down in green pastures; He leads me beside still waters" (Tehilim 23:2).

But one who trusts G-d, selects among the different occupations one which is easy on his body, allows him to earn a good reputation, does not consume his mind, and is best suited for fulfilling his torah obligations and the principles of his faith, because the choice of occupation will neither increase nor decrease the income he will earn unless G-d decreed so, as it says "For it is not from the east or from the west, neither from the desert does elevation come. But G-d judges; He lowers this one and elevates that one." (Tehilim 75:7), and "He causes me to lie down in green pastures; He leads me beside still waters" (Tehilim 23:2).