Deuteronomy 32:33

Their wine [is] the poison of dragons, and the cruel venom of asps.

Ver. 33. Their wine,] i.e., Their works, yea, their best works, prove pernicious to them; not their own table only, but God's table becomes a snare to the unprepared communicant; he sucks there the poison of asps, &c., Job 20:16 he eats his bane and drinks his poison: as Henry VII, Emperor, was poisoned in the sacramental bread by a monk; Pope Victor II, by his sub-deacon in his chalice; and one of our Bishops of York, by poison put into the wine at the eucharist.