How do you know if someone is telling the truth about God? And how should you respond if they are not? Every Christian is responsible for knowing God's Word and for sharing it, and in a world affected by sin false teaching is everywhere.

Many people obscure, distort or challenge what God has revealed in Scripture, and some of them are leaders inside the church. This short reference from Ligonier Ministries surveys the prominent theological errors, the cults and the world religions, so a Christian can recognize falsehood quickly and answer it. In Spanish.