I don't like the phrase "when necessary." Although our good works are important, they do not convey the content of the gospel. It makes me think of faith without works being dead. The two are inseparable. The words aren't something that can be just thrown in there. They give the actions meaning.

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DAVIDIVS DOCTVS VTRIVSQVE LINGVAE
Husband of Emilia
Member: First Reformed Presbyterian Church of Durham (RPCNA) - Durham, NC
Currently in the process of transferring membership to an as-yet-undecided church in Chapel Hill
Student: University of North Carolina at Chapel Hill, German Literature and Classics