The Psalmist reminds us of our incapability of achieving that which does not end in despair. It is only through God "that we may gain a wise heart."
Martin Luther in his Small Catechism tells us, "I believe that I cannot by my own understanding or effort believe in Jesus Christ my Lord, or come to him. But the Holy Spirit has called me through the Gospel, enlightened me with his gifts, and sanctified me and kept me in the true faith."
Our society is so driven to self-fulfillment that our memory fades and we forget that all we have and all we are comes from the Triune God. As we find in the first chapter of James, "Every generous act of giving, every perfect gift, is from above, coming down from the Father."
How is it with you?