The centerpiece of Reformed theology, recovered at the reformation, is not election, predestination, or even justification by faith, rather it is the doctrine of Scripture.
The first sermon in a series of five on the doctrine of Scripture, Pastor Tim demonstrates that scripture is necessary for knowing God's will, maintaining spiritual life, certain knowledge, and knowing the way of salvation. Cherish it, thank God for it, reading, study it, memorize it, and proclaim it!