why do we memorize scripture???

The following is a quote off of Beth Moore's blog.....she is talking about memorizing scripture and why it is SO important.
I often teach women about controlling our thought life, and give them tools to deal with that. Beth has worded this 'tool' so well, that I wanted to post it here so that you might be convicted about the importance of focusing our minds on God's Word!
She says:

"Somebody may be thinking, “Good grief! I didn’t want to have to think about it that much!” But, you see, that’s the BEAUTY of it! We could be thinking how ticked we are at somebody. We could be thinking how tempted we are toward somebody. We could be thinking how dissatisfied we are with something. We could be thinking AGAIN about what so-and-so had the gall to say to us. I am never more prone to mental defeat than when I just allow my mind to wander anywhere and to anything. I’m by no means suggesting that we never allow our minds to rest. Of course we do. I’m saying that when, in that state of rest and idleness, our thoughts begin to go left toward something destructive, we need a pretty fail-safe way to switch gears. I know no better way than to immediately start letting some verses scroll through my head. That’s what it means to take thoughts captive to the knowledge of Christ and that’s how we tear down everything that exalts itself against Him.

I’m also prone to mental defeat when the enemy has pitched me a great opportunity to obsess about something or to give way to fear and stress. Each of these represents perfect moments to turn to my Scripture memory. There are tons of things we COULD think about today but we have the power in Jesus’ Name to choose the things that edify our spirits and renew our minds. Remember, every defeat and every victory takes place on the battlefield of the mind before it erupts in the exterior life. Listen, Darling Things, we don’t have to let every mental struggle turn into a stronghold. We can successfully cut things off at the pass. And this is one huge way we do it."

So, let's memorize some Scripture!!!!!!!!!!!