My heart I give you, Lord, eagerly and entirely.
If we are given gold, would we not test it to determine it's value? If we doubted its genuineness - we would test it by fire...and so God with us.
The blood of Christ is necessary to purge the faults clinging to our best works.
If grace acts in us, grace, and not we who do the work, will be crowned.
Let that ethical philosophy therefore of free-will be far from a Christian mind.
As by the revolt of the first man, the image of God could be effaced from his mind and soul, so there is nothing strange in His shedding some rays of grace on the reprobate, and afterwards allowing these to be extinguished.