Matthew 7:24

So everyone who hears these words of Mine and acts on them, will be like a wise man (a far-sighted, practical, and sensible man) who built his house on the rock.  

Building a solid foundation on the word of God is one of the most important things we can do.  The word gives us knowledge of the promises of God and prepares us for the ups and downs.  Knowledge is power for our lives and strength to our souls.