Yahweh uses this word here to draw the people's attention to what he says next. Alternate translation: "Listen" or "Indeed" (See: [[rc://en/ta/man/translate/figs-idiom]])
This refers to the people of Israel who have entered into Yahweh's covenant by getting circumcised physically, but who have not changed their inner beings by following his laws. Alternate translation: "all those people who have changed their bodies by circumcising them but who have not changed their inner beings" (See: [[rc://en/ta/man/translate/figs-metaphor]])