Solomon
Ecclesiastes 12:8ESV·traditional attribution

Vanity of vanities, says the Preacher; all is vanity.

Matthew Henry Presbyterian @wholebiblehenry

Solomon is here drawing towards a close, and is loth to part till he has gained his point, and prevailed with his hearers, with his readers, to seek for that satisfaction in God only and in their duty to him which they can never find in the creature. I. He repeats his text (Ecc 12:8), 1.

Commenting on Ecclesiastes 12:8-12

John Gill Reformed Baptist @doctorgill

Vanity of vanities, saith the preacher,.... The wise man, or preacher, set out in the beginning of the book with this doctrine, or proposition, which he undertook to prove; and now having proved it by an induction of particulars, instanced in the wisdom, wealth, honours, pleasures, and profit of men, and shown the vanity of them, and that the happiness of men lies not in...

Jamieson-Fausset-Brown Reformed @jfbcommentary

A summary of the first part. Vanity, &c.--Resumption of the sentiment with which the book began (Ecc 1:2; Jo1 2:17).