The Gemara (Bechoros 7b) cites two opinions as to why bee’s honey is permitted. The Chachamim explain that honey is permitted because it is not a secretion. Rather, honey is the collected nectar in a different form, which is expelled from the bee. Rebbi Yaakov says that the permissibility of bee’s honey is derived from a Talmudic exegesis of the verse in Vayikra (11:21): “However, this you may eat from among all the flying insects…”