The difference between leavened and unleavened bread is found in the word itself - leaven. Leaven is what is placed in bread dough to make the bread rise. It is placed in the dough and spreads throughout the entire lump.
Many, both in the religious world and otherwise, have a gross misunderstanding of what constitutes faith. Contrary to scripture, many believe that faith is necessary to "fill in the gaps" in the absence of real, tangible evidence.
The birthright was the natural privilege of the firstborn son. Receiving the birthright, the firstborn would become the head of the family, and would have charge of the family, including the family property.
Names are important. It is difficult for us to conceive of things apart from their names. The many different names for God in the Bible describe and demonstrate His character.