To me these verses show a pattern. We must eat (read the word) to stay alive, and it is through the word we are given strength to fight our enemy. Those not of flesh and blood.
1Pe_2:2 As newborn babes, desire the sincere milk of the word, that ye may grow thereby:
Rom_10:17 So then faith cometh by hearing, and hearing by the word of God.
Heb_11:6 But without faith it is impossible to please him (God): for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.
Pro 24:3Through wisdom is a house builded; and by understanding it is established: 4 And by knowledge shall the chambers be filled with all precious and pleasant riches.
Eph_6:17 And take the helmet of salvation, and the sword of the Spirit, which is the word of God:
Heb_4:12 For the word of God is quick, and powerful, and sharper than any two edged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart.
2Ti_2:15 Study to shew thyself approved unto God, a workman that needeth not to be ashamed, rightly dividing the word of truth.
Col_2:19 … which all the body by joints and bands having nourishment ministered, and knit together, increaseth with the increase of God.
Pro_11:9 … but through knowledge shall the just be delivered.
2Pe_1:2 Grace and peace be multiplied unto you through the knowledge of God, and of Jesus our Lord,
2Pe_2:20 For if after they have escaped the pollutions of the world through the knowledge of the Lord and Saviour Jesus Christ, they are again entangled therein, and overcome, the latter end is worse with them than the beginning.
Mat 12:44 Then he saith, I will return into my house from whence I came out; and when he is come, he findeth it empty, swept, and garnished. 45 Then goeth he, and taketh with himself seven other spirits more wicked than himself, and they enter in and dwell there: and the last state of that man is worse than the first. Even so shall it be also unto this wicked generation.