Solomon
Proverbs 19:2ESV·traditional attribution

Desire without knowledge is not good, and whoever makes haste with his feet misses his way.

Matthew Henry Presbyterian @wholebiblehenry

Two things are here declared to be of bad consequence: - 1. Ignorance: To be without the knowledge of the soul is not good, so some read it. Know we not our own selves, our own hearts? A soul without knowledge is not good; it is a great privilege that we have souls, but, if these souls have not knowledge, what the better are we?

John Gill Reformed Baptist @doctorgill

Also, that the soul be without knowledge, it is not good,.... Without knowledge of things natural and civil, especially without the knowledge of God and Christ, and divine and spiritual things; to be without this is not good, yea, very bad; for men without such knowledge and understanding are, like the beasts that perish, and for lack of it do. Jarchi interprets it, without the law.

Jamieson-Fausset-Brown Reformed @jfbcommentary

The last illustrates the first clause. Rashness, the result of ignorance, brings trouble.