He shall die without instruction; and in the greatness of his folly he shall go astray.
He shall die without instruction - without the disciplinary instruction (so the Hebrew) which is the privilege of the children of God (Proverbs 3:11-12), and therefore without the saving "wisdom" and "knowledge" which are its blessed fruits (Job 4:21; Job 36:12). This is the just retribution in kind for having "hated instruction" (Proverbs 5:12). God punishes sinner by giving them their own way.
And in the greatness of his folly he shall go astray. The same Hebrew verb as in Proverbs 5:19-20, was translated "be ravished," margin, err. His erratic love, which ravished him, shall be judicially made his punishment by becoming everlasting error (Proverbs 1:31).