“Hear my voice, O God, in my prayer: preserve my life from fear of the enemy.” Psalm 64:1 (KJV)

We have here another of David’s prayers.  David was a unique man and king.  He often called on God in prayer, and it was a normal thing for Him, because he had a heart for God.  Of David C. H. Spurgeon has written,

It is our duty to note how constantly David turns to prayer; it is his battleaxe and weapon of war he uses it under every pressure, whether of inward sin or outward wrath, foreign invasion or domestic rebellion. We shall act wisely if we make prayer to God our first and best trusted resource in every hour of need.
from THE TREASURY OF DAVID

In the apostle Paul’s letter to the Ephesians he has written,

“And take the helmet of salvation, and the sword of the Spirit, which is the word of God: praying always with all prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints…” Ephesians 6:17-18 (KJV)

We note that for the Christian, in particular the Spirit filled Christian the Word of God is an weapon of offense, and I believe defense as well; and then there is the matter of prayer.  It is a weapon as well.  When we are in touch with God, and He is in communication with us then He is the Champion of our battles.

To conclude this study I will include some of the words from Matthew Henry:

He earnestly begs of God to preserve him (Psa_64:1, Psa_64:2): Hear my voice, O God! in my prayer; that is, grant me the thing I pray for, and this is it, Lord, preserve my life from fear of the enemy, that is, fro the enemy that I am in fear of. He makes request for his life, which is, in a particular manner, dear to him, because he knows it is designed to be very serviceable to God and his generation. When his life is struck at it cannot be thought he should altogether hold his peace, Est_7:2, Est_7:4. And, if he plead his fear of the enemy, it is no disparagement to his courage; his father Jacob, that prince with God, did so before him. Gen_32:11, Deliver me from the hand of Esau, for I fear him. Preserve my life from fear, not only from the thing itself which I fear, but from the disquieting fear of it; this is, in effect, the preservation of the life, for fear has torment, particularly the fear of death, by reason of which some are all their life-time subject to bondage.
from Matthew Henry Commentary

Let us, however, not just use prayer for our help; but also for praising Him  who alone is worthy of our worship, praise, honor and glory.  That is Christ Jesus.