Christ drove the gamblers from the Temple.

The Catholic Answers

When Christ expelled the money-changers, and the buyers and sellers from the Temple, their crime was not gambling. Their crime was the conducting of secular business in such a place, and their own dishonesty in charging exorbitant prices for goods and exchange. But gambling as such was not involved in this matter.

Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty