Good works shall follow them …

In our best duties we have defilement, Isa. 64:6. Self, unbelief, form, drop themselves into all that we do. We may be ashamed of our choicest performances. God hath promised that the saints’ good works shall follow them. Truly, were they to be measured by the rule as they come from us, and weighed in the balance of the sanctuary, it might be well for us that they might be buried for ever. But the Lord Christ first, as our high priest, bears the iniquity, the guilt, and provocation, which in severe justice doth attend them, Exod. 28:38; and not only so, but he washes away all their filth and defilements.

source: John Owen, Of Communion with God