An old writer said that some books are to be tasted, some to be swallowed, some to be chewed and digested. The Bible is one that you can never finish with. It is like a bottomless well; you can always find fresh truth gushing forth from its pages.
“No Scripture,” said Spurgeon, “is exhausted by a single explanation. The flowers of God’s garden bloom not only double, but sevenfold; they are continually pouring forth fresh fragrance.” Hence the great fascination of constant and earnest Bible study. I thank God there is a height in the Book that I have never been able to reach, a depth that I have never been able to fathom.
Unless you have an uncommon memory, you cannot retain the good things you hear. If you trust to your ear alone, they will escape you in a day or two; but, if you mark your Bible, and enlist the aid of your eye, you will never lose them. The same applies to things you read.
Everyone ought to study the Bible with two ends in view: his own growth in knowledge and grace, and passing it on to others. We ought to have four ears — two for ourselves, and two for other people. My Bible is worth a good deal to me because I have so many passages marked that, if I am called upon to speak at any time, I am ready. We ought to be prepared to pass around heavenly thoughts and truths, just as we do the coin of the realm.
Bible-marking should be made the servant of memory; a few words will recall a whole sermon. It sharpens the memory, instead of blunting it, if properly done, because it gives prominence to certain things that catch the eye, which by constant reading you get to learn by heart. It helps you to locate texts. It saves preachers and class-leaders the trouble of writing out notes of their addresses. Once in the margin, always ready.
Never mark anything because you saw it in the Bible of someone else. If it does not come home to you, if you do not understand it, do not put it down.
Never pass a nugget without trying to grasp it. Then mark it down.
of BIBLE MARKING by D.L. Moody