Ezekiel 37:22 - Matthew Poole's English Annotations on the Holy Bible

I will make them one nation: they were one in David's time, who was type of the Messiah, and continued so to the end of Solomon's time, whose name includes peace. So when the Beloved, the Peace-maker, the Messiah shall be King, and on his throne exercising his kingly power, they shall be once more one again. In the land of Canaan, called here, as elsewhere, the mountains of Israel. One king; Messiah; the most and best, if not the learnedest, interpreters understand not Zerubbabel, nor Nehemiah, nor Judas Maccabeus. No more two nations; the union under the Messiah's visible and actual exercise of his regal power shall be perpetual. From this place, so full and express for a firm, lasting union between the two nations Ephraim and Judah, and their being of two kingdoms made one in the land whence they were scattered, some take occasion to inquire whether it be fulfilled already, or remaineth yet to be accomplished; the discussion whereof, as it would be very alien to a literal paraphrase, and too prolix, I pass over, saying no more of it in the affirmative or negative.