Go to the effort. Invest the time. Write the letter. Make the apology. Take the trip. Purchase the gift. Do it. The seized opportunity renders joy. The neglected brings regret.
There is a canyon of difference between doing your best to glorify God and doing whatever it takes to glorify yourself. The quest for excellence is a mark of maturity. The quest for power is childish.
At the beginning of every act of faith, there is often a seed of fear. For great acts of faith are seldom born out of calm calculation.