2 Samuel 23:2-3

(2) The Spirit of the LORD spake by me, and his word was in my tongue. (3) The God of Israel said, the Rock of Israel spake to me, He that ruleth over men must be just, ruling in the fear of God.

If the Reader carefully attends to those three distinct titles, and yet all one and the same, by which David describes the LORD JEHOVAH, perhaps he will be inclined to think, as some learned men have done before him, that they imply the threefold, well known character, by which the LORD JEHOVAH is revealed in a Trinity of persons in the GOD-head. The GOD of Israel in the well known title of the FATHER. The Rock of Israel evidently refers, and in a peculiar manner, to GOD the SON. And the SPIRIT of the LORD is the common appellation by which GOD the HOLY GHOST is, for the most part, known in all the sacred writings. Reader! how delightful to behold this glorious foundation article of our holy faith cherished and lived upon by the early fathers in the church. And, before we enter upon the review of these last words of David, cannot but hope that the Reader will remark that, what David is about in the opening of this chapter to leave upon record to the church, is both what the SPIRIT of the LORD spoke by him; and also what the Rock of Israel spake to him. Do not overlook this distinction I beseech you, What the spirit spake by David, is what was designed for the instruction of others. What the Rock of Israel spake to David, no doubt is what the LORD JESUS spake for his own personal advantage. The former was in the teaching of the HOLY GHOST. The latter among the blessed manifestations of JESUS. What David delivered to others in his Psalms, or history, as intended for the benefit of the church, brings with it, therefore, all possible authority, for holy men of old spoke as they were moved by the HOLY GHOST. 2 Peter 1:21. Blessed privilege! Highly distinguished honour! to have the communications of JESUS for our own felicity, and the teachings of the HOLY GHOST for the comfort of others.