'Forbidden' in the Bible

Peter said to them, “You know it’s forbidden for a Jewish man to associate with or visit a foreigner. But God has shown me that I must not call any person common or unclean.

Now when they had gone throughout Phrygia and the region of Galatia, and were forbidden of the Holy Ghost to preach the word in Asia,

For they had previously seen Trophimus the Ephesian in the city with Paul, and they assumed that he had brought the man into the temple [beyond the court of the Gentiles].