Similarly, (Leviticus 6:5) "And the Cohein shall burn wood upon it every morning, etc." What is the intent of this? Is it not written (Isaiah 40:16) "and (the whole forest of Levanon is not sufficient to burn, etc."? What, then, is the intent of "And the Cohein shall burn wood upon it"? For the sake of receiving reward.
The Torah Commands and the Priest Shall Burn Wood Upon It Every
Mekhilta Tractate Pischa 16:6