Matthew Poole and continuators on Isaiah 50:11

11 Behold, all ye that kindle a fire , that compass your selves about with sparks : walk in the light of your fire, and in the sparks that ye have kindled . This shall ye have of mine hand, ye shall lie down in sorrow .

That you may enjoy the light and comfort of it, as it is explained in the following words. You that reject the light which God hath set up, and refuse the counsel of his Servant, and seek for Comfort, and Safety, and the Knowledg of Gods Mind, and the enjoyment of his favour by your own inventions; which was the common errour of the Jews in all Ages, and especially in the days of the Messiah, when they refused him and that way of Righteousness and Salvation which he appointed, and rested upon their own Traditions and devices, going about to establish their own Righteousness, and not submitting unto the Righteousness of God, as it is expressed, Rom. 10. 3.

Indeavouring to warm and refresh your selves on all sides.

Or rather, with Firebrands, as this very word is fitly rendred, Prov. 26. 18. which is better than sparks or flames, which is there put in the margent, because firebrands only, and not sparks or flames, are capable of being thrown by one man at another. And this word is no where else used in Scripture. He mentions fire-brands, either to imply that these fires yielded more smoak than heat or light: or because these were the usual materials of a fire.

Use your utmost endeavours to get comfort and satisfaction from these devices.

This shall be the fruit of all, through my just Judgment, that instead of that comfort and security which you expect by these means, you shall receive nothing but vexation and misery, which shall pursue you both living and dying: for this word, which is here rendred lie down, is frequently used for dying, as Gen. 47. 30. Iob 21. 26. and elsewhere. Or it is a metaphor from a man that lying down on his Bed for rest and ease, meets with nothing but trouble and pain, as Iob complain'd, chap. 7. 13, 14.

Marginal references: Joh. 9. 39.