Humans wither like grass, and their glory fades like wild flowers. Grass dries up. But what the LORD has said will stand forever.
1 Peter 1: 24 and 25 (Contemporary English Version)
By Andrew Murray
While on earth Jesus quotes the Old Testament words stating that "People need more than bread for their life; they must feed on every word of God." The prophet Jeremiah suggests when we find the word of God we eat it. This eating of the word is like taking it into our inmost being; it becomes a part of our very life.
The same with a truth, or a promise; what you have eaten now becomes part of yourself. You cannot gather and garner grain to last for many years. You cannot swallow a large enough quantity of bread to last for days. Day by day, and more than once a day you take your day's food. And so the eating of God's word must be in small portions, just as much as the soul can each time receive and digest.
It is such feeding on the word which will enable you to say: "Your word was to me the joy and rejoicing of my heart." George Muller says that he learned that he ought not to stop reading the Word until he felt happy in God; then he felt fit to go out to do his day's work.