The Apostle Peter
1 Peter 1:24BSB·traditional attribution

For, “All flesh is like grass, and all its glory like the flowers of the field; the grass withers and the flowers fall,

John Calvin Reformed @genevareformer

24 For all flesh He aptly quotes the passage from Isaiah to prove both clauses; that is, to make it evident how fading and miserable is the first birth of man, and how great is the grace of the new birth. For as the Prophet there speaks of the restoration of the Church, to prepare the way for it, he reduces men to nothing lest they should flatter themselves.

Matthew Henry Presbyterian @wholebiblehenry

The apostle having given an account of the excellency of the renewed spiritual man as born again, not of corruptible but incorruptible seed, he now sets before us the vanity of the natural man, taking him with all his ornaments and advantages about him: For all flesh is as grass, and all the glory of man as the flower of grass; and nothing can make...

Commenting on 1 Peter 1:24-25

John Gill Reformed Baptist @doctorgill

All men, as born of corruptible seed, are frail, mortal, and perishing; they spring up like grass, and look beautiful for a while, but are very weak and tender, and in a little time they are cut down by death, and wither away; and while they live, are, in a good measure, nothing but grass in another form; the substance of their life is greatly...