C.H. Spurgeons's The Treasury of David
Verse 18-19. See Psalms on "Psalms 72:18" for further information.
EXPLANATORY NOTES AND QUAINT SAYINGS
Verse 19. Amen, and Amen. Rabbi Jehudah the Holy, said, "He that said Amen in this world is worthy to say it in the world to come. David, therefore, utters Amen twice in this Psalm, to show that one `Amen' belongs to this world, the other to that which is to come. He who saith `Amen' devoutly, is greater than he who uttereth the prayers, for the prayers are but the letter, and the Amen is the seal. The scribe writeth the letters, the prince alone seals them." Neale and Littledale.
Verse 19. Amen, and Amen. What is Amen in Matthew 16:28 is alhqwj or "verily" in Luke 9:27. Our Saviour hath this phrase peculiar to himself, "Amen, Amen," to give confirmation to the doctrine, and to raise our attention and faith; or to show that not only truth is spoken, but by him who is truth itself... There is no need for a rubric by the men of the Great Synagogue, or a canon, to command a man to blush, when it only the natural passion that will command it; so, when the heart is warm in prayer with serious and earnest affections, a double Amen doth as naturally flow from us as milk from a mother's breast to her suckling. And Amen comes from !ma, aman, which signifies "to nurse;" as if it were, if not the mother, yet the faithful nurse, of lively devotion. Assent to repetitions is essential unto prayer, and it is not signified publicly but by one Amen. Thomas Woodcock (--1695) in "Morning Exercises."
Verse 19. Amen is a short word, but marvellously pregnant, full of sense, full of spirit. It is a word that seals all the truths of God, that seals every particular promise of God. And it is never likely to arise in the soul, unless there be first an almighty power from heaven, to seize on the powers of the soul, to subdue them, and make it say, "Amen." There is such an inward rising of the heart, and an innate rebellion against the blessed truth of God, that unless God, by his strong arm, bring the heart down, it never will nor can say, "Amen." Richard Sibbes.
HINTS FOR PASTORS AND LAYPERSONS
Verse 17-19. The Four Blesseds, their meaning and order.