Acts 16:21

And teach customs, which are not lawful for us to receive, neither to observe, being Romans.
— Acts 16:21, King James Version

In other translations

World English Bible (WEB)

and set forth customs which it is not lawful for us to accept or to observe, being Romans."

American Standard Version (ASV)

and set forth customs which it is not lawful for us to receive, or to observe, being Romans.

Young's Literal Translation (YLT)

and they proclaim customs that are not lawful for us to receive nor to do, being Romans.'