“In its Greek form, the term ‘true piety’ comes from a word meaning ‘to serve well’. If some people say that ‘to serve well’ is the same thing as faith, let them explain how it is possible to fear the Lord before believing in Him. Does one not first believe in the Lord and then fear Him? Hence faith gives rise to fear, and from fear comes true piety.”
(St Peter Damascene in ‘The Philokalia’)