God's Word is the spiritual food of the believer. You must eat God’s word to be nourished by it if you must stay alive and stay connected to the Spirit of God. Job considered God's Word more than his physical food.
I have not departed from the commandment of His lips; I have kept the words of His mouth more than my necessary food. Job 23:12 [KJV]
Just as your body is nourished by natural food, so your spirit is nourished by God's Word. If you don’t eat physically, you will become sick malnourished and eventually die. Likewise if you don’t eat God’s Word you will be spiritually malnourished.
How To "Eat" God's Word
You must eat God's Word by reading, studying, meditating, ruminatinating, and pondering on it by the power of the Holy Spirit. Let it become your lifestyle. Like natural food, you must allow God's Word to be digested, absorbed and assimilated into your spiritual digestive tract(your inner man,spirit,heart). Only then will it nourish your spirit and your life.Remember, your spirit is the real you and your life, it has the ability to live for ever, your flesh is not, it will only rot away.
Eat God's Word daily and consistently and your will prosper in every area of life.
And he shall be like a tree planted by the rivers of water, that bringeth forth his fruit in his season; his leaf also shall not wither; and whatsoever he doeth shall prosper.
Psalm 1:3 [KJV]
Be blessed my friend.