Levitico 23:29

²⁹ Poiché, ogni persona che non si umilierà in quel giorno, sarà sterminata di fra il suo popolo.

Leaven

'Leaven' signifies evil and falsity which should not be mixed with good and true things.

¹¹ "'No meal offering, which you shall offer to Yahweh, shall be made with yeast; for you shall burn no yeast, nor any honey, as an offering made by fire to Yahweh.