The Heidelberg Catchism for the Lord’s Day, January 12

3. From where do you know your misery?

From the Law of God.

4. What does the Law of God require of us?

Christ teaches us in sum, Matthew 22:

“You shall love the Lord your God with all your heart, and with all your soul, and with all your mind, and with all your strength. This is the first and great commandment. And the second is like unto it, You shall love your neighbor as yourself. On these two commandments hang all the law and the prophets.”

 5. Can you keep all this perfectly?

No,for I am prone by nature to hate God and my neighbor.