en_tn/act/07/41.md

Stephen continues his defense before the Jewish council that he began in Acts 7:1.

they made a calf

"they made a statue that looked like a calf"

to serve the host of heaven

"to serve the lights in the sky"

O house of Israel

This is a metonym for the whole nation of Israel. (see: rc://en/ta/man/translate/figs-metonymy)

Did you offer to me slain beasts and sacrifices …

This is a rhetorical question stating that their sacrifices were not offerings to God. This can be translated as "You did not offer to me slain beasts and sacrifices …." (See: rc://en/ta/man/translate/figs-rquestion)