God told Abram to leave his country, his people, his father’s household and go. Yet, Abram took possessions, and people, including Lot. He didn’t obey God completely. Incomplete obedience is disobedience . How often do we obey God only when it's something we want to do, completely ignoring other things that we should do? Complete obedience is not an easy thing to do.

Back to Abram. He next decided to go to Egypt, instead of trusting God to provide for him during the famine. If Abram had taken only what God told him to take, he wouldn’t have had to worry about taking care of all his entourage.

Then this man...Melchizedek...just who is He anyway??? See the book of Hebrews. It explains it very clearly!