2 Chronicles 35:18

“there was no passover like to that kept in Israel from the days of Samuel--One feature by which this passover was distinguished was the liberality of Josiah. But what distinguished it above all preceding solemnities was, not the imposing grandeur of the ceremonies, nor the immensity of the assembled concourse of worshippers; for these, with the exception of a few from the kingdom of Israel, were confined to two tribes; but it was the ardent devotion of the king and people, the disregard of purely traditional customs, and the unusually strict adherence, even in the smallest minutiÃ&brvbr, to the forms of observance prescribed in the book of the law, the discovery of an original copy of which…”

“Like to that - The whole solemnity was performed exactly according to the law, whereas in Hezekiah's passover there were several irregularities: likewise Josiah furnished the whole congregation with beasts for sacrifice at his own charge, which no king ever did before him. 2 Chronicles 35:20”

“35:18 This Passover included a greater number of participants than the one Hezekiah had observed. In this Passover, the priests and Levites took a prominent and proper role, as Josiah had specifically required (35:15-16; cp. 30:3, 15).”

“there was no passover: Not one on purer principles, more heartily joined in by the people present, more literally or exactly consecrated, according to the law, or more religiously observed. The words do not refer to the number present, but to the manner and spirit. Ch2 30:5; Kg2 23:21-23 neither did: Ch2 30:26, Ch2 30:27 2 Chronicles 35:20”