Who in the world is Melchizedek?

I have to tell you all about the last 24 hours of my life.  Then I'll ask you about Melchizedek.  So....yesterday I had this really wonderful plan.  (God really must laugh when we make plans.)  My morning was planned out perfectly.  First, Jackson and I headed out to Itsy Bitsy Yoga.  He loves his yoga class.  He laughed throughout the whole thing.  Next was supposed to be my yoga class.  It is something I look forward to all week.  Usually Jackson sits quietly in his car seat and falls asleep or plays with a toy because he is all tired out from his workout.  I and about 7 other mommy's do postnatal yoga for about an hour and the instructor holds a few of the crying babes to get us through a semi-relaxing class.  Well, our 8 month pregnant instructor already had 2 babies on her knees including her own inside when about 2 poses into the class Jackson decides this set up wasn't going to work.  I knew he was already tired and if he didn't fall asleep, he would be hungry before too long.  He wasn't falling asleep.  I didn't really even try too hard.  I just decided to leave, get him home and feed him.  My decision mostly based on the afternoon I was looking forward to spending with Jonathan.  We were going to go to the Arboretum together and enjoy some family time....first time in a long time.  Before I could get out of the parking lot I noticed a text from Jonathan.  It said, "call me."  OK.  I called him.  He proceeded to tell me of a minor home emergency and asked me to come on home.  The "minor" pipe that broke above our apartment flooded our laundry room and bathroom.  Luckily, since Jonathan was home at the time, maintenance was able to shut the water off quickly and fix the problem.  My whole "planned" day turned into a problem.  Jonathan and I spent from about 11:30 to 7:30 cleaning up this PROBLEM!!  We both crashed last night.  Of course I crashed until Jackson woke up at his usual 2:30 for a back rub.  Yes, really, a back rub.  He doesn't want to nurse usually, just a reminder that I'm here and a back rub back to sleep.  Any mommy's reading this?  I'd love suggestions on how to stop this habit!!  So, finally, this morning, we are working hard on a schedule and Jackson is taking his first morning nap in days!!!!  I'm working on my 3rd cup of coffee...decaf, of course, and catching up on some Hebrews.  This leads me to the passage of Melchizedek.  I did an Old Testament study last summer with my friend, Erin, and we asked the same question.  Who/what is he, really?  I'm reading Hebrews in the first place because Jonathan is writing a paper on it now.  I plan on asking him when he gets home.  Even thought I don't completely understand the passage, there is something I do understand.  This is why I'm blogging today.  Hebrews 7:15-28 describes Jesus in the most encouraging ways.  "Jesus became a priest, not by meeting the physical requirement of belonging to the tribe of Levi, but by the power of a life that cannot be destroyed."  That verse made my heart well up with hope!  I believe in a God whose life cannot be destroyed!!!!!  There is more..."There were many priests under tho old system, for death prevented them from remaining in office.  But because Jesus lives forever, his priesthood lasts forever.  Therefore he is able once and forever, to save those who come to God through him.  He lives forever to intercede with God on their behalf."  Who cares about laundry room floods and sleepless nights!  I have a God who saves me once and forever!!!!!  My heart is happy this morning, even thought I'm not quite sure who Melchizedek is.