Solomon
Ecclesiastes 12:1BSB·traditional attribution

Remember your Creator in the days of your youth, before the days of adversity come and the years approach of which you will say, “I find no pleasure in them,”

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. A call to young people to think of God, and mind their duty to him, when they are young: Remember now thy Creator in the days of thy youth. This is, 1. The royal preacher's application of his sermon concerning the vanity of the world and every thing in it.

Commenting on Ecclesiastes 12:1-7

John Gill Reformed Baptist @doctorgill

Remember now thy Creator in the days of thy youth,.... Or "Creators" (b); as "Makers", Job 35:10; for more than one were concerned, as in the creation of all things in general, so of man in particular, Gen 1:26; and these are neither more nor fewer than three; and are Father, Son, Spirit; the one God that has created men, Mal 2:10; the Father, who...

Geneva Bible Notes Reformed @genevanotes

Therefore remove sorrow from thy heart, and put away evil from thy flesh: for childhood and youth [are] vanity. (i) That is, anger and envy. (k) Meaning, carnal lusts to which youth is given.