2 Kings 23:23

23 But in the eighteenth year of King Josiah’s reign, this Passover was celebrated to the LORD in Jerusalem.

2 Kings 23:23 Meaning and Commentary

2 Kings 23:23

But in the eighteenth year of king Josiah, wherein this
passover was holden to the Lord in Jerusalem.
] This shows that Josiah must begin the reformation very early that year, since he did all that is before recorded in this and the preceding chapter by the fourteenth of Nisan, the day on which the passover was kept, which month answers to part of our March and part of April, see ( 2 Kings 22:3 ) and was the same year the repairs of the temple were finished.

2 Kings 23:23 In-Context

21 King Josiah then issued this order to all the people: “You must celebrate the Passover to the LORD your God, as required in this Book of the Covenant.”
22 There had not been a Passover celebration like that since the time when the judges ruled in Israel, nor throughout all the years of the kings of Israel and Judah.
23 But in the eighteenth year of King Josiah’s reign, this Passover was celebrated to the LORD in Jerusalem.
24 Josiah also got rid of the mediums and psychics, the household gods, the idols, and every other kind of detestable practice, both in Jerusalem and throughout the land of Judah. He did this in obedience to the laws written in the scroll that Hilkiah the priest had found in the LORD ’s Temple.
25 Never before had there been a king like Josiah, who turned to the LORD with all his heart and soul and strength, obeying all the laws of Moses. And there has never been a king like him since.
Holy Bible. New Living Translation copyright© 1996, 2004, 2007, 2013 by Tyndale House Foundation. Used by permission of Tyndale House Publishers Inc., Carol Stream, Illinois 60188. All rights reserved.