Taking place the first 2 nights of the 8 day holiday, the Seder is the most important event in the Passover celebration. Usually gathering the whole family and friends together, the Seder, even in Messianic circles, is steeped in long held traditions and customs

Leading up to the first night of Passover, the home is cleaned and cleared of all yeast foods, called hametz. All hametz is either eaten before Passover begins or "sold" to non-Jewish neighbors and friends

The burning, or removing, of leaven is symbolic of the destruction of idolatry.  Leaven is not only symbolic of sin, but because it ferments and rises up, this symbolizes arrogance and haughtiness.  In other words, “pride”, which comes before destruction.  Obviously then “pride” would come under the heading of sin.

  “For Thou wilt light my candle: the LORD my God will enlighten my darkness.” (Psalms 18:28 KJV)