Mormon 8:36 states, "And I know that ye do walk in the pride of your hearts; and there are none save a few only who do not lift themselves up in the pride of their hearts, unto the wearing of very fine apparel, unto envying, and strifes, and malice, and persecutions, and all manner of iniquities; and YOUR CHURCHES, yea, EVEN EVERY ONE, have BECOME POLLUTED because of the pride of your hearts."
Walking in the Pride of your Hearts is an interesting Hebraic expression. In Hebrew the heart is considered the center of our thoughts and personality. Pride (root gey) means to lift up high like the mountains that surround a valley. The idea is one of creating a place with high places or walls. In Hebraic thought The Torah (God's Instructions) are to be our boundaries or walls, so when we walk in the Pride of our hearts we are walking according to our own self or man made laws putting ourselves not only above others but above God's instructions. This leads to a state of iniquity or lawlessness.