Following are a number of back-translations as well as a sample translation for translators of 2 Chronicles 35:18:

• Kupsabiny: “A festival of Passover like that one had not been celebrated in the whole of Israel from the days of the prophet Samuel. Not a single king in Israel had ever been seen to prepare a Festival of Passover like the one that king Josiah had prepared, together with the priests, the Levites, all the people of Judah, Israel and those of Jerusalem.” (Source: Kupsabiny Back Translation)
• Newari: “The Passover festival had never been celebrated in this way since the time of the prophet Samuel. Such a celebration of the Passover festival had never been done before like this by any of the other kings of Israel with Josiah the king, the priests, the Levites, the people of Jerusalem and people who had come there from all places in Judah and Israel.” (Source: Newari Back Translation)
• Hiligaynon: “From the time of Samuel, the Feast of the Passing-by of the Angel had- not -been-celebrated like this. The previous kings were- not -able-to-celebrate like the celebration of King Josia and the priests, Levites, residents of Jerusalem, and the people of whole Juda and Israel.” (Source: Hiligaynon Back Translation)
• English: “The Passover Festival had not been celebrated like that in Israel since the time that the prophet Samuel lived. None of the other kings of Israel had ever celebrated the Passover like Josiah did, along with the priests, the other descendants of Levi, and all the other people of Judah and Israel who were there with the people who lived in Jerusalem.” (Source: Translation for Translators)