Exodus 13:6-7 Ex. 13:6-7
6 Seven days thou shalt eat unleavened bread, and in the seventh day shall be a feast to the LORD. 7 Unleavened bread shall be eaten seven days; and there shall no leavened bread be seen with thee, neither shall there be leaven seen with thee in all thy quarters.
Galatians 5:9 Gal. 5:9
A little leaven leaveneth the whole lump.
(Relation)