Psalm 89:4

“In short, again, a throne “unto the age” is more suitable to Christ, God’s Son, than to Solomon,—a temporal king, to wit, who reigned over Israel alone.” — editor's note: Or, “unto eternity.” Comp. 2 Sam. (2 Kings in LXX.) vii. 13; 1 Chron. xvii. 12; Ps. lxxxix. 3, 4, 29, 35, 36, 37 (in LXX. Ps. lxxxviii. 4, 5, 30, 36, 37, 38).

“It is the Patriarchs that He called chosen; then He goes on “I have sworn unto David my servant,” and He states concerning what He swore, “Thy seed will I establish for ever, and build up thy throne to all generations.”” — editor's note: Ps. lxxxix. 4

“On Psalm lxxxix. 4.” — the author cites it

““I have sworn,” He saith, “to David My servant; thy seed will I establish for ever” (ver. 4).” — the author cites it

“…things are there added similar to those found in the Book of Samuel, such as this, “I have sworn to David my servant that I will prepare his seed for ever.”” — editor's note: Ps. lxxxix. 3, 4.