Question and Answer of the Heidelberg Catechism (1563)
Lord’s Day 24
- 62. But why cannot our good works be the whole or part of our righteousness before God?
- Because the righteousness which can stand before the judgment seat of God, must be perfect throughout and entirely conformable to the divine law,1 but even our best works in this life are all imperfect and defiled with sin.2
1 Deut 27:26; Gal 3:10; 2 Isa 64:6; Php 3:12; Jas 2:10
Heidelberg Catechism here.