"On the eighth day shall you give it to Me": This tells me (that it is acceptable) only on the eighth day itself. Whence do I derive (that it is acceptable) from the eighth day onward? It follows, viz.: It is written here "eighth," and elsewhere (Leviticus 22:27) "eighth." Just as there, from the eighth day on, so, here, from the eighth day on. Just as here (it is acceptable) on the eighth day itself, so, there.