The Heidelberg Catechism: Lord’s Day 2
3.Question: From where do you know your sins and misery?
Answer: From the law of God.[1]
[1] Rom. 3: 20;
4. Question: What does God’s law require of us?
Answer: Christ teaches us this in a summary in Matthew 22: You shall love the LORD your God with all your heart, and with all your soul, and with all your mind.[1] This is the great and first commandment. And a second is like it, You shall love your neighbor as yourself. On these two commandments depend all the law and the prophets.[2]
[1] Deut. 6:5. [2] Lev. 19:18.
5. Question: Can you keep all this perfectly?
Answer: No,[1] I am inclined by nature to hate God and my neighbor.[2]
[1] Rom. 3:10, 23; I John 1:8, 10. [2] Gen. 6:5; 8:21; Jer. 17:9; Rom. 7:23; 8:7; Eph. 2:3; Tit. 3:3.