Storing the Word is meditating on and memorizing, to put it simply. It’s not fancy, and takes discipline and determination, but the benefits are great:
“. . .I have stored up Your Word in my heart, that I might not sin against You . . .” Psalm 119:11
“. . .through Your precepts I gain understanding; therefore I hate every false way . . .” Psalm 119:104
“. . .do not be conformed to this world, but be transformed by the renewal of your mind, that by testing you may discern what is the will of God, what is good and acceptable and perfect. . . ” Romans 12:2