This speaks of a person's bribe working by comparing it to a magical stone or amulet. Alternate translation: "A bribe works like a magical stone for the one who gives it" or "A bribe works like magic for the one who is giving the bribe" (See: [[rc://en/ta/man/translate/figs-simile]])
Here "turning" refers to the various things the person does. Specifically, this refers to the different things the person does by bribery. Alternate translation: "in whatever he does" or "in everything he tries to do by giving bribes" (See: [[rc://en/ta/man/translate/figs-idiom]] and [[rc://en/ta/man/translate/figs-explicit]])