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Hebrews 1:11ESV·author unknown

they will perish, but you remain; they will all wear out like a garment,

Matthew Henry Presbyterian @wholebiblehenry

The apostle, having proved the pre-eminence of the gospel above the law from the pre-eminence of the Lord Jesus Christ above the prophets, now proceeds to show that he is much superior not only to the prophets, but to the angels themselves.

Commenting on Hebrews 1:4-14

John Gill Reformed Baptist @doctorgill

They shall perish,.... That is, the heavens and the earth; not as to the substance of them, but as to the quality of them; the present form and fashion of them shall pass away; the curse will be removed from them, and they will be renewed and purified, but the substance of them will continue; otherwise there would be no place, either for the righteous...

Albert Barnes Presbyterian @notesbybarnes

Verse 11. They shall perish. That is, the heavens and the earth. They shall pass away; or they shall be destroyed. Probably no more is meant by the phrase here, than that important changes will take place in them, or than that they will change their form, Still, it is not possible to foresee what changes may yet take place in the heavenly bodies, or...