Charles Ellicott Commentary 2 Chronicles 30:1

"And Hezekiah sent to all Israel and Judah, and wrote letters also to Ephraim and Manasseh, that they should come to the house of Jehovah at Jerusalem, to keep the passover unto Jehovah, the God of Israel." — 2 Chronicles 30:1 (ASV)

HEZEKIAH’S PASSOVER—THE ROYAL SUMMONS TO ALL ISRAEL FROM DAN TO BEER-SHEBA (2 Chronicles 30:1–12).

Sent to. — ‘al, i.e., ’el. (Jeremiah 26:15; Nehemiah 6:3).

Letters. — ‘Iggĕrôth. Apparently a word of Persian origin. (Compare ‘engâre, “something written; ” ‘engârîden, “to paint” or “write; ” from which comes the Greek ᾰγγαρος, a royal messenger; Esther 9:26; compare Matthew 5:41.) Only used in late Hebrew.

To Ephraim and Manasseh. — That is, the northern kingdom. (Compare 2 Chronicles 30:10.)

To keep (make) the passover to the Lord. —Exodus 12:48 (same phrase); Septuagint, ποιῆσαι τὸ φάσεκ (Pascha). The first year of Hezekiah was the third year of Hoshea, the last king of Samaria. Hoshea is described as a better king than his predecessors. Doubtless, therefore, Hoshea did not actively oppose Hezekiah’s wish for a truly national Passover. (See 2 Kings 18:1; 2 Kings 17:2.)