Catena Aurea on Matthew 26:3–5: Leo the Great

We recognise here a providential arrangement whereby the chief men of the Jews, who had often sought occasion of effecting their cruel purposes against Christ, could never yet succeed till the days of the paschal celebration. For it behoved that the things which had long been promised in symbol and mystery should be accomplished in manifest reality, that the typical lamb should be displaced by the true, and one sacrifice embrace the whole catalogue of the varied victims. That shadows should give way to substance, and copies to the presence of the original; victim is commuted for victim, blood is abolished by blood, and the festival of the Law is at once fulfilled and changed.