Verse 6 Your glorying; your self-complacency, and satisfaction with your condition, while such a sin remains unpunished.--Leaven. The Jews, in keeping the passover, were required to use only unleavened bread, the better to commemorate the haste and confusion in which they left Egypt, and which prevented the preparation of bread in the usual manner. From the very nature of leaven, tending, as it does, so strongly to disseminate itself, it was necessary to avoid admitting the smallest quantity into the mixture from which the bread was to be prepared. Hence leaven, as a prohibited thing which had a powerful tendency to spread from small beginnings until it pervaded the whole mass, became an apt emblem of sin, and is often so made use of by many of the sacred writers.