Confession of Faith
Chapter 16: Of Good Works
Q 4. They who, in their obedience, attain to the greatest height which is possible in this life, are so far from being able to supererogate, and to do more than God requires, as that they fall short of much which in duty they are bound to do.1
So you also, when you have done all that you were commanded, say, ‘We are unworthy servants; we have only done what was our duty.’”
Then I commanded the Levites that they should purify themselves and come and guard the gates, to keep the Sabbath day holy. Remember this also in my favor, O my God, and spare me according to the greatness of your steadfast love.
“Truly I know that it is so:
But how can a man be in the right before God?
If one wished to contend with him,
one could not answer him once in a thousand times.
For the desires of the flesh are against the Spirit, and the desires of the Spirit are against the flesh, for these are opposed to each other, to keep you from doing the things you want to do. (ESV)