(For of necessity he must release one unto them at the feast.)
We have here the blessed Jesus run down by the mob, and hurried to the cross in the storm of a popular noise and tumult, raised by the malice and artifice of the chief priests, as agents for the prince of the power of the air. I. Pilate solemnly protests that he believes he has done nothing worthy of death or of bonds.
Commenting on Luke 23:13-25
For of necessity he must release one,.... And therefore proposed to release Jesus unto them at the feast; of passover, which now was; not that there was any law that obliged to it, but it having been customary with the Roman governor to do so, the people expected it; custom had made it necessary: and so the Syriac, Arabic, and Persic versions render it, "it...
For of necessity he must release one - That is, he was under the necessity of releasing one at this feast. The custom, however it originated, had now been so completely established that Pilate was obliged to attend to it. See on Mat 27:15 (note).