And I will raise me up a faithful priest, that shall do according to that which is in mine heart and in my mind: and I will build him a sure house; and he shall walk before mine anointed for ever. A faithful priest - This seems to have been spoken of Zadok, who was anointed high priest in the room of Abiathar, the last descendant of the house of Eli; see 1 Kings 2:26, 1 Kings 2:27. Abiathar was removed because he had joined with Adonijah, who had got himself proclaimed king; see 1 Kings 1:7.
I will build him a sure house - I will continue the priesthood in his family.
He shall walk before mine Anointed - He shall minister before Solomon, and the kings which shall reign in the land. The Targum says, "He shall walk קדם משיחי kodam Meshichi, before my Messiah," and the Septuagint expresses it, ενωπιον Χριστου μον, "before my Christ;" for, in their proper and more extended sense, these things are supposed to belong to our great High Priest and the Christian system: but the word may refer to the Israelitish people. See the note on Hebrews 9:26.