LEV93 It was said to Aharon, “Drink no wine or strong drink, you or your sons after you... that you distinguish between the sacred and the common... and that you teach the Children of Israel” (Vaykira 10:9-11). This cautions anyone engaged in an act of God’s service, that he not involve himself in anything that may keep him from completing that service to perfection, as our Masters, of blessed memory, said: “If one drank a fourth [of a log] of wine, he should not render a legal decision; if he drank a fifth, he should not pray” [see Eruvin 64a].