And as a vesture - A garment; literally something thrown around - περιβόλαιον peribolaion - and denoting properly the outer garment, the cloak or mantle; see notes, Matthew 5:40. "Shalt thou fold them up." That is, the heavens. They are represented in the Scriptures as an "expanse." or something spread out (the Hebrew text of Genesis 1:7): as a "curtain," or "tent" Isaiah 40:22, and as a "scroll" that might be spread out or rolled up like a book or volume, Isaiah 34:4; Revelation 6:14. Here they are represented as a garment or mantle that might be folded up - language borrowed from folding up and laying aside garments that are no longer fit for use. "And they shall be changed." That is, they shall be exchanged for others, or they shall give place to the new heavens and the new earth; 2-Peter 3:13. The meaning is, that the present form of the heavens and the earth is not to be permanent, but is to be succeeded by others, or to pass away, but that the Creator is to remain the same. "Thou art the same." Thou wilt not change. "And thy years shall not fail." Thou wilt exist forever unchanged. What could more clearly prove that he of whom this is spoken is immutable? Yet it is indubitably spoken of the Messiah, and must demonstrate that he is divine. These attributes cannot be conferred on a creature; and nothing can be clearer than that he who penned the Epistle believed that the Son of God was divine.

And they shall be changed - Not destroyed ultimately, or annihilated. They shall be changed and renewed.
But thou art the same - These words can be said of no being but God; all others are changeable or perishable, because temporal; only that which is eternal can continue essentially, and, speaking after the manner of men, formally the same.
Thy years shall not fail - There is in the Divine duration no circle to be run, no space to be measured, no time to be reckoned.
All is eternity - infinite and onward.

And as a vesture shalt thou fold them up,.... In order to lay them aside, and make no use of them in the manner they now are; just as clothes, when they are grown old, or out of fashion, are folded up, and laid aside from use at present, or are put into another form. In the Hebrew text it is, "as a vesture shalt thou change them"; but the sense is the same, for a garment is changed by folding it, or turning it; agreeably to which Jarchi interprets the Hebrew phrase thus,
"as a man turns his garment to put it off;''
the Vulgate Latin version reads as the Hebrew does, and one of the manuscripts of New College, Oxford.
And they shall be changed; as to their form and use, not as to their being; for a change, and an annihilation, are two things:
but thou art the same, and thy years shall not fail; which is expressive of the immutability of Christ, in his nature and perfections, in his person, and offices, in the virtue of his blood, righteousness, and sacrifice; and of his duration or continuance, in opposition to the fading and transitory nature of the heavens and earth, and of all outward enjoyments: and this may serve to take off the heart from the one, and set it upon the other; and to strengthen our faith in Christ, and encourage us to expect a continuance of blessings from him; all supplies of grace now, and eternal glory hereafter.

vesture--Greek, "an enwrapping cloak."
fold them up--So the Septuagint, Psalm 102:26; but the Hebrew, "change them." The Spirit, by Paul, treats the Hebrew of the Old Testament, with independence of handling, presenting the divine truth in various aspects; sometimes as here sanctioning the Septuagint (compare Isaiah 34:4; Revelation 6:14); sometimes the Hebrew; sometimes varying from both.
changed--as one lays aside a garment to put on another.
thou art the same-- (Isaiah 46:4; Malachi 3:6). The same in nature, therefore in covenant faithfulness to Thy people.
shall not fail--Hebrew, "shall not end." Israel, in the Babylonian captivity, in the hundred second Psalm, casts her hopes of deliverance on Messiah, the unchanging covenant God of Israel.

As a mantle - With all ease. They shall be changed - Into new heavens and a new earth. But thou art eternally the same.