21-23. the king commanded all the people, saying, Keep the passover unto the Lord your God, &c.—It was observed with great solemnity and was attended not only by his own subjects, but by the remnant people from Israel (see on 2Ch 35:1-19). Many of the Israelites who were at Jerusalem might have heard of, if they did not hear, the law read by Josiah. It is probable that they might even have procured a copy of the law, stimulated as they were to the better observance of Jehovah's worship by the unusual and solemn transactions at Jerusalem.