John Lightfoot on John 12:12

[Much people that were come to the feast.] It is not greatly to our present purpose to enlarge in counting the multitude that flocked to the Passover. However, let the reader take this story in his way, and judge of it as he thinks fit:

"King Agrippa, desirous to know how great a multitude was at Jerusalem at the Passover, commanded the priests, saying, 'Lay me aside one kidney of every lamb.' They laid him aside six hundred thousand pair of kidneys: double the number to those that went out of Egypt. Now there was not any paschal lamb but was divided among more than ten persons. R. Chaija saith, 'Forty, nay fifty persons.' One time they went into the Mountain of the Temple, and it could not contain them. But there was a certain old man amongst them whom they trod under their feet. Wherefore they called that Passover the Crowded Passover."

Although this be an account (according to the loose Rabbinical way of talking) that exceeds all belief or modesty, yet might the reader, without a monitor, take notice of something in it not unworthy observation. It is true, indeed, that the multitude of those that celebrated the Passover at every feast could hardly be numbered, it was so great; yet had Jerusalem hardly ever seen such a conflux of people as was at this very feast which we are now upon, they being gathered thither from all nations of the world, Acts 2: for that they were at the Passover as well as at Pentecost, there are hardly any, I believe, but will suppose.