My One Defense

My Defense is of God, Who Saves the Upright in Heart.  – Psalm 7:10

Over four years, this morning was the third time I have had the same thought triggered by the same lyrics of, “Lord I need Thee”. One line captures my attention.
“My one defense.”
Most of the time I think of a defense as protection, a shield, or a safe place – and God is all these. But a defense can also mean a reason – a justification for an action.
God is my only reason.
He is the only possible explanation for the way I choose to live. 
The only plausible excuse for the way I believe. 
The only justification for my “archaic” morals – is God. 
He is my one defense. And I need no other, I want no other.