PSALM 49 trusting in Him

Psalm 49:7-8  NAB
7.  They trust in their wealth;
           the abundance of their riches is their boast.
8.  Yet in no way can a man redeem himself,
           or pay his own ransom to God.

Trusting in God is a symptom of being Christian.
Trusting in "knowledge" or "money" or "self"  is a symptom
of being turned away from God.

Psalm 49:7 ESV
Truly no man can ransom another
   or give to God the price of his life.