Natural strength is what we receive from the hand of God as Creator. Spiritual strength is what we receive from God in grace.
Watchman NeeWe should try our best to pour out all the burdens in our spirit by prayer until all of them have left us.
Watchman NeeWith fear and trembling we must rely upon God for guidance in the inner depths. This is the sole way to walk according to the spirit.
Watchman Nee