The Firstborn Beast Treated Like the Firstborn Son for Reward

Because it says, "And you shall bring there your burnt offerings… and the firstborn of your herd and your flock" (Deuteronomy 12:6), I might understand that even if he is in a distant place it would be an obligation upon him to bring it to the chosen house [the Temple]. Therefore Scripture teaches, "among man and among beast" — He compared the firstborn of beast to the firstborn of man: just as a firstborn of man you are permitted to give to the priest in any place you wish, so too a firstborn of beast you are permitted to give to the priest in any place you wish; and just as with a firstborn of man you tend to him thirty days, so too with a firstborn of beast you tend to it thirty days. "It is Mine" — why is this said? Because it says, "The male you shall sanctify to the LORD your God" (Deuteronomy 15:19): sanctify it so that you may receive reward. Or perhaps if you sanctified it, it is sanctified, and if not, it is not sanctified? Therefore Scripture teaches, "It is Mine" — in any case. So what does "you shall sanctify" teach? That you may receive reward. Likewise you say, "And the priest shall burn wood upon it every morning" (Leviticus 6:5). Why is this said? Has it not already been said, "And Lebanon is not sufficient fuel" (Isaiah 40:16)? So what does "the priest shall burn upon it" teach? So that you may receive reward.