Yahweh is talking about Israel.

## have taken away their understanding ##

(See: [[rc://en/ta/man/translate/figs-metaphor]])

## their walking sticks give them prophecies ##

idol worshipers used the staff (or walking stick) to foretell the future (See: [[rc://en/ta/man/translate/figs-personification]])

## spirit of promiscuity has misled them ##

worshiping the idols and having sex with the temple prostitutes has caused Israel to sin greatly against Yahweh (See: [[rc://en/ta/man/translate/figs-metaphor]])