Read: Leviticus 7
The meat of their fellowship offering of thanksgiving must be eaten on the day it is offered; they must leave none of it till morning. Lev 7:15
Isn’t that strange? You could eat the flesh on the day you offered it if it was an offering of thanksgiving for some particular thing. Or if it was just a general expression of your gratitude toward God you could save some of it for the second day. But under no circumstances were you ever to eat of the flesh of that peace offering on the third day. It had to be burned with fire. If you tried to eat any of it, that was an abomination unto God.
Now, what is God saying here? Well, it is a very practical truth. He is saying that there must be no separation between the peace that you feel and the source of that peace, the sacrifice which provided it. You must not separate the two. In other words, you must not depend upon the feelings of peace that are given to you. Don’t try to live on those. Once peace is given as a result of trusting the work of Jesus Christ on your behalf don’t just say, Ah, now I feel much better! I think I can go on now, and tomorrow I’ll just expect this peace still to be here and I’ll reckon on that. Don’t shift your dependence from the One who gives peace, to the feeling that is produced.