Verse 9. - Bakbukiah and Unni. Bakbukiah's position with respect to Mattaniah has been already mentioned (Nehemiah 11:17). "Unni" appears, in this place only, as a Levite of Zerubbabel's time. Were over against them in the watches. i.e. "ministered in their courses, as the others did, and kept their stations over against them in their turns of attendance, which are called their 'watches' or wards" (Bp. Patrick). LIST OF THE HIGH PRIESTS FROM JESHUA TO JADDUA (Nehemiah 12:10, 11). That this is the line of descent in the high priestly family of the time sufficiently appears both from the names themselves, and from the position assigned to those who bore them in vers. 22, 23, 26. Whether all of them actually exercised the high priest's office is left uncertain in Scripture, but satisfactorily established by Josephus. The six names cover a space of at least 205 years - from the conquest of Babylon by Cyrus, B.C. 538, to the submission of Jerusalem to Alexander the Great, B.C. 333, which gives very long generations, but still such as are historically possible. Jeshua was certainly high priest from B.C. 538 to B.C. 516. He may have been succeeded by his son, Joiakim, about B.C. 490. Joiakim had certainly been succeeded by his son, Eliashib, before B.C. 444 (Nehemiah 3:1); and Eliashib was probably succeeded by Joiada about B.C. 420. Joiada's high priesthood may be assigned to the period between B.C. 420 and 380; Jonathan's to that between B.C. 380 and 350. Jaddua might then hold the dignity from B.C. 350 to 330, or later, and so be brought into contact with Alexander the Great. It is questioned whether in that case Nehemiah can have written the present passage, and certain that he cannot have done so unless he lived to be at least 131 years of age. As this is exceedingly improbable, it is best to suppose, either that the whole list was placed here by Malachi, or at any rate that that prophet added the clause, "and Jonathan begat Jaddua."

12:1-26 It is a debt we owe to faithful ministers, to remember our guides, who have spoken to us the word of God. It is good to know what our godly predecessors were, that we may learn what we should be.Also Bakbukiah and Unni,.... Two other Levites; the first is mentioned in Nehemiah 11:17,

their brethren, were over against them in the watches; the Levites were divided into twenty four wards, and these were placed one against another, 1 Chronicles 23:6.