en_tn/mat/23/04.md

they bind heavy burdens that are difficult to carry, and then they put them on people's shoulders. But they themselves will not move a finger to carry them

Here "bind heavy burdens ... put them on people's shoulders" is a metaphor for the religious leaders making many difficult rules and making the people obey them. And "will not move a finger" is an idiom that means the religious leaders will not help the people. Alternate translation: "they make you obey many rules that are difficult to follow. But they do nothing at all to help the people follow the rules" (See: rc://en/ta/man/translate/figs-metaphor and rc://en/ta/man/translate/figs-idiom)