Charles Ellicott Commentary Isaiah 50:11

"Behold, all ye that kindle a fire, that gird yourselves about with firebrands; walk ye in the flame of your fire, and among the brands that ye have kindled. This shall ye have of my hand; ye shall lie down in sorrow." — Isaiah 50:11 (ASV)

All you that kindle a fire. —The words obviously point to any human substitute for the Divine light, and thus include the two meanings which commentators have given them:

1. Man’s fiery wrath, that works not the righteousness of God;
2. Man’s attempt to rest in earthly comforts or enjoyments instead of in the light and joy that comes from God.

That compass yourselves about with sparks. —The words are rendered by many commentators, gird yourselves with burning darts, or firebrands, i.e., with calumnies and execrations as your weapons of warfare .

You shall lie down in sorrow. —The words point to a death of anguish, perhaps to the torment that follows death , as the outcome of the substitution of the earthly for the heavenly light.