Heidelberg Catechism · 1563

Q3. From where do you know your sins and misery?

From the law of God.
Answer · Heidelberg Catechism

Scripture proofs

  1. [1]
    Romans 3:20

    Therefore by the deeds of the law there shall no flesh be justified in his sight: for by the law is the knowledge of sin.

Proof texts as given in the original; verse text from the King James Version.