Heresy

Pelagius maintained an orthodox appearance while rejecting original sin and the distinction between law and gospel.

Instead of defining the true church in the way of the law, Augustine approaches the issue pastorally in the way of the gospel.

Understanding the doctrine of the hypostatic union can help us understand what God is up to in the Incarnation.

Good theology is the most practical thing you can have.

The danger of denying the truth of our common human fallenness and brokenness by original sin is that the denial of this doctrine may also lead us to the denial of Christ as our Savior.