Both - Those who fear not God, and those who fear not the king.

The ruin of them both? - Of them who do not fear the Lord; and of them that do not reverence the King.

For their calamity shall rise suddenly; and who knoweth the ruin of them (g) both?
(g) Meaning, either of the wicked and seditious, as in (Proverbs 24:19, Proverbs 24:21) or of them who do not fear God or obey their king.

For their calamity shall rise suddenly,.... And come upon those that fear not God, and rebel against the king and the state, and innovate in matters of religion; and especially that bring in damnable heresies, and, while they cry Peace, peace, and are pleasing themselves with their new schemes and prosperous success, swift and sudden destruction comes upon them, 2-Peter 2:1;
and who knoweth the ruin of them both? of those that fear not the Lord, nor the king; or of those who are given to change, and innovate in things civil and religious; and of those who meddle with them and join themselves to them: the ruin of themselves and families, in a civil sense, is great and inexpressible, who rebel against their prince, and endeavour to change and subvert the present government; and the ruin of the souls of men, both of the deceivers and the deceived, is beyond all conception and expression.

their calamity, &c.--either what God and the king inflict, or what changers and their company suffer; better the first.

Who knoweth - Who can conceive how sore and sudden will be the ruin of them that fear not God, and the king.