en_tn_lite_do_not_use/act/07/41.md

they made a calf

Stephen's audience knew the calf they made was a statue. Alternate translation: "they made a statue that looked like a calf" (See: rc://en/ta/man/translate/figs-explicit)

a calf ... the idol ... the work of their hands

These phrases all refer to the same statue of the calf.