HC 89

Heidelberg Catechism

Q89. What is the dying of the old nature?

It is to grieve with heartfelt sorrow that we have offended God by our sin, and more and more to hate it and flee from it.

Ps. 51:3-4 — [3] For I know my transgressions, and my sin is ever before me. [4] Against you, you only, have I sinned and done what is evil in your sight, so that you may be justified in your words and blameless in your judgment.
Ps. 51:17 — [17] The sacrifices of God are a broken spirit; a broken and contrite heart, O God, you will not despise.
Joel 2:12-13 — [12] “Yet even now,” declares the LORD, “return to me with all your heart, with fasting, with weeping, and with mourning; [13] and rend your hearts and not your garments.” Return to the LORD your God, for he is gracious and merciful, slow to anger, and abounding in steadfast love; and he relents over disaster.
Rom. 8:12-13 — [12] So then, brothers, we are debtors, not to the flesh, to live according to the flesh. [13] For if you live according to the flesh you will die, but if by the Spirit you put to death the deeds of the body, you will live.
2 Cor. 7:10 — [10] For godly grief produces a repentance that leads to salvation without regret, whereas worldly grief produces death.

The Assembly cited Ps. 51:3-4 in support of this answer. Read it in context — how does it bear on what is claimed here?
5 passages are cited here. Which does the most work, and is anything claimed that the proofs do not obviously carry?
BC 6.3 treats the same ground. What does it add, and why might it put things differently?
BC 6.4 treats the same ground. What does it add, and why might it put things differently?