Psalm 27:1-3

v-1 The Lord (and all He is...the Most High, Creator of the Universe, King of the Universe)

is my Light (The Truth and the Revealer of Truth, Teacher)

and my Salvation (Deliverer from all affliction...physical, emotional, spiritual; Provider of all of my needs...physical, emotional, spiritual).

Whom then shall I fear? (No one, no thing...whether spiritual entities, humans, or beasts)

The Lord is the defense of my life (He's the King of Kings, Lord of Lords, Lord of Hosts...angelic or demonic...,the Captain of my salvation, my Advocate and Judge, my Redeemer...the Lamb of God..., the Author and Finisher of my faith);

Whom shall I dread? (No one, no thing...whether spiritual entities, humans, or beasts...for all of the above reasons)

v-2 When evildoers (the wicked under demonic or soulical influences) come upon me to destroy me (physically, mentally, or emotionally), my adversaries and my enemies (those who oppose me and those who would attempt to destroy me) stumbled (were confounded, confused) and fell (were conquered, destroyed).

v-3 Though a host (multitudes of evildoers, wicked) encamp against me (stand against me by argument, opposition, contradiction), my heart (soul...mind, will, emotions) will not fear.
Though war (destruction, attack) arise against me (threaten me), in spite of this I shall be confident (established in the intimate, experiential knowledge and understanding of Who God is and His covenant with me).
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Fear is foolishness to God, for He has provided everything for us. Faith is absolute trust in Who God is, what He says, and His willingness and ability to do what He says He will do; whereas, fear is misplaced faith. It is trusting in any circumstances, reports, and outcomes that are contrary to God's Word and that misrepresent Who He is and how He works. Fear is unbelief in Who God is and what He says, and is evil in God's sight.

It takes faith to please God. Our Father expects us to walk in absolute trust towards Him at all times, rejoicing in the opportunity to glorify Him by standing firm in His covenant with us, and watching as He uses opposing circumstances to demonstrate His power and His faithfulness to fulfill His Word on our behalf.