Pseudo-Jerome
Catena Aurea · Markusevangelium 14
After two days was the feast of the Passover, and of unleavened bread: and the Chief Priests and the Scribes sought how they might take him by craft, and put him to death. But they said, Not on the feast day, lest there be an uproar of the people.
Let us now sprinkle our book, and our thresholds with blood, and put the scarlet thread around the house of our prayers, and bind scarlet on our hand, as was done to Zarah, (Gen. 38:30) that we may be able to say that the red heifer is slain in the valley. (Num. 19:2, Deut. 21:4) For the Evangelist, being about to speak of the slaying of Christ, premises, After two days was the feast of the Passover, and of unleavened bread.