Demai 5:9 - 5:10

משל ישראל על של עובד כוכבים – this Tanna/teacher thinks that there is no acquisition for an idolater in the Land of Israel to release it from tithing and this is Rabbi Meir, but it is not Halakha for we hold that there is an acquisition for idolaters in the Land of Israel to release it from tithing, as it is written (Leviticus 25:23): “But the land must not be sold beyond reclaim, [for the Land is Me; you are but strangers resident Me].,” but if it is sold it is a final sale.

על של כותים – the produce of the Cutheans are definitely eatables forbidden pending the separation of sacred gifts (i.e., טבל) we sell them, for even though when we consume their produce it is tithed, when they sell it, it is not tithe because they are not concerned about (Leviticus 19:14): “or place a stumbling block before the blind.”

רבי אלעזר אוסר משל כותים על של כותים – for sometimes he tithes for himself and changes his mind and sells it, but lest one thing is tithe and the other is not, and it is found that he separates for tithes from that which is exempt for that which on which there is an obligation. And in our time, the Cutheans were made [by the Rabbis] like complete idolaters for all of their matters.

עציץ נקוב – a utensil that they put into it dust and sow it, if it is perforated in order that a small root which is less than the volume of an olive exists, it is like the land and its produce are completely eatables forbidden pending the separation of priestly gifts according to the Torah.

תרם מן הארץ – even ab initio also, he is able to separate the priestly gifts, but because of the concluding clause [of the Mishnah] it took the language of “post-facto.”

תרומה ויחזור ויתרום – for he [separated tithes] from that which is exempt on that which is obligatory, therefore, he should go back and separate the priestly dues again, but nevertheless, because he designated its name as “heave-offering,” he gives it to the Kohen so that people aren’t induced to disregard the heave-offering. But he does not have to remove from it heave-offering and tithes like in the concluding clause [of the Mishnah] because according to the Torah it is not an eatable that is forbidden pending the separation of priestly gifts, but from the perforated [pot] on that which is not perforated, that is what is obligated to separate the heave-offering on that which is exempt [from it], it is according to the Torah, eatables that are forbidden pending the separation of priestly gifts, therefore, he should not consume it until he removes the heave-offering and tithes (see also Tractate Yevamot 89b – “that he should remove heave offering and tithes from another place”).