ייִדישער מחשבֿה אויף תהילים 37:3

And the verse says "Trust in the L-ord and do good; so shall you dwell in the land, and verily you shall be fed" (Tehilim 37:3), and "G-d is good to those who hope in Him, to one who seeks Him" (Eicha 3:25).

(8) The alchemist does not linger in one place too long due to fear that his secret will be discovered. But one who trusts in G-d feels secure in his land, and has peace of mind in his place, as written "Trust in the L-ord and do good; dwell in the land and be nourished by faith" (Tehilim 37:3), and "The righteous shall inherit the land and dwell forever in it" (Tehilim 37:29).