One of the principles that Grace taught which provoked controversy was the concept of one-man leadership. Grace used the Bible as his reference and taught that God only used one man at a time (e.g. Noah, Moses, and Jesus. One of the many criticisms made against Grace is the following statement which Grace is to have allegedly made in the early 1940s: "Salvation is by Grace only. Grace has given God a vacation, and since He is on vacation, don't worry about Him. If you sin against God, Grace can save you, but if you sin against Grace, God cannot save you." Nonetheless, the "interpretation of this point – that Grace claimed he himself was God – has been almost completely definitive in both academic and popular literature, and only a handful of writers have ever questioned it, usually as an aside." The most extensive research done by Danielle Brune Sigler on this statement shows that Mr. Fauset selectively quoted certain parts of the original message which changed the context." The original statement, spoken by a member and not Grace, shows that the members and Grace, himself, thought that he was not "God himself", but merely an "intermediary" and "the path to salvation."