ישעיהו מד:טו פירוש: רש״י ואבן עזרא

And it was for man to ignite And part of that very tree was for man’s necessities, [viz.] to ignite.

לבער To bum. Then shall it be for a man, etc. Some warm themselves by the fire, others kindle it, etc. ישיק He kindleth it. Comp. נשקה was kindled (Ps. Ixxviii. 21); the meaning of נשק is similar to that of בער to burn.

and he took from the trees. and he warmed his body opposite them.