The spirit of prayer, or, A discourse [electronic resource] : wherein the nature of prayer is opened, the kinds of prayer are handled, and the right manner of praying discover'd, several cases about this duty are resolved from Eph. 6, l8 ... : unto which is added a direction for the attaining the gift of prayer, that family-duty may not be omitted, nor secret duty discouraged through inability of utterance and expression / by Nathanael Vincent.