|<references/>|-|:When the Hebrews removed leaven from their homes, they were not symbolically removing their sin, but removing the old teaching of the law in preparation for the teaching of peace. <ref>[[Heb 10:1]] For the law having a shadow of good things to come, [and] not the very image of the things, can never with those sacrifices which they offered year by year continually make the comers thereunto perfect.</ref>|<references/>|-|During the sermon on the mount, Jesus repeatedly said "You have heard it said... but I say...". <ref>Mt 5:21, 27, 33, 38, 43</ref> He was ushering in the new teaching of peace. The kingdom (teaching) of heaven was "at hand". <ref>[[Kingdom at hand]]</ref> It was there in front of them in the teaching of Jesus.