Solomon
Proverbs 6:21ESV·traditional attribution

Bind them on your heart always; tie them around your neck.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. A general exhortation faithfully to adhere to the word of God and to take it for our guide in all our actions. 1. We must look upon the word of God both as a light (Pro 6:23) and as a law, Pro 6:20, Pro 6:23.

Commenting on Proverbs 6:20-35

John Gill Reformed Baptist @doctorgill

When thou goest, it shall lead thee,.... The law of God taught by parents; this directs man in the path of duty and business of life; teaches him what way to shun, and which to walk in; it leads out of the paths of sin, and into the way in which he should go, which is most conducive to his good, and to the glory...

Geneva Bible Notes Reformed @genevanotes

Bind them continually upon thine heart, [and] tie them about thy neck. (i) .