I have heard this psalm many many time quoted and memorised and cited in times of fear and anxiety. It’s like a ‘lucky charm’ for many Christians. It’s almost used as ‘I just need to say it and God will do it!’
We think that just by knowing this psalm or parts of this psalm we will be protected from harm automatically.
But, I believe that before we go to the ‘protection details and claims’ we need to first ‘dwell and ‘rest’ in God.
Dwelling in the secret place of Most High is about habitually residing in God’s presence. It speaks of nearness and intimacy, of closeness and confidence.
Resting in His shadow speaks of walking closely with God ( think about it, we have to be close to someone if we are to be under their shadow)
As Christians we don’t just blubber mindless words and phrases, we stand in the authority and presence of God as new and righteous people who have been given access and proximity to His presence by our Lord Jesus Christ. Standing like that ( dwelling before declaring) we shall not fear, for God is our refuge and strength, He is our protection and place of safety.
( See 1 Chronicles 23:25, Ephesians 2:19-22, Matthew 11:28-30)