Church Fathers on Luke 19:46

When He had related the evils that were to come upon the city, He straightway entered the temple, that He might cast out them that bought and sold in it. Showing that the destruction of the people arose chiefly from the guilt of the priests.

For God wishes not His temple to be a house of traffic, but the dwelling-place of holiness, nor does He fix the priestly service in a salable performance of religion, but in a free and willing obedience

Now there were in the temple a number of sellers who sold animals, by the custom of the law, for the sacrificial victims, but the time was now come for the shadows to pass away, and the truth of Christ to shine forth. Therefore Christ, who together with the Father was worshipped in the temple, commanded the customs of the law to be reformed, but the temple to become a house of prayer; as it is added, My house, &c.