The entire book is ascribed to Solomon, although the last chapters, which were added to the collection at a later time, have as their authors Agur, the son of Jakeh, and King Lemuel. Of Solomon it is stated that he spoke three thousand proverbs, 1 Kings 4:32. Some of these Solomonic proverbs were gathered together in our book, as the superscriptions of the various sections show: “The proverbs of Solomon, the son of David,” chap. 1:1; “The proverbs of Solomon,” chap. 10:1; “These are the proverbs of Solomon, which the men of Hezekiah, king of Judah, copied out,” chap. 25:1.