en_tn/act/04/21.md

After further warning

The Jewish leaders again threatened to punish Peter and John.

They were unable to find any excuse to punish them

Although the Jewish leaders threatened Peter and John, they could not find a reason to punish them without causing the people to riot.

for what had been done

This can be stated in active form. Alternate translation: "for what Peter and John had done" (See: rc://en/ta/man/translate/figs-activepassive)