You will prolong the king's life: and his years as many generations.
Read Chapter 61
Augustine of Hippo
AD 430
7. "Days upon days of the King Thou shall add to the years of Him" (ver. 6). This is therefore the King of whom we are the members. A King Christ is, our Head, our King. Thou hast given to Him days upon days; not only those days in that time that hath end, but days upon those days without end. "I will dwell," he saith, "in the house of the Lord, for length of days," Wherefore for length of days, but because now is the shortness of days? For everything which hath an end, is short: but of this King are days upon days, so that not only while these days pass away, Christ reigneth in His Church, but the Saints shall reign together with Him in those days which have no end. ...For years of God have been also spoken of: "But Thou art the very Same, and Thy years shall not fail." In the same manner as years, so days, so one day. Whatsoever thou wilt thou sayest of eternity. Whatever thou wilt thou sayest for this reason, because whatever thou shalt have said, it is too little that thou hast sai...
King. They wish long life to the king, expecting that the predictions of the prophets insured to them temporal dominion. But when they saw Zorobabel possess no such splendour, they were naturally taught to extend their thoughts to the Messias, of whom the Chaldeans and ancient Jews, as well as the Fathers, explain this passage. (Calmet)
Chaldean, "the days of the future world thou wilt add to the days of the king, the Messias. His years shall be like the generations of this world, and the generations of the world to come. "Eternity is clearly meant. If David speaks of himself, and of his successors on the throne for many ages, he must be considered as a figure of Christ, who is also designated. (Berthier)
The Church will continue to the end, and be triumphant throughout eternity. (Worthington)
