A letter first written and sent by Iohn Forbes, pastour of the English Church at Middelburgh : vnto certaine of the companie of merchants aduenturers at Stoad, at their earnest desire, for resoluing this question: how a christian man may discerne the testimonie of Gods spirit from the testimonie of his owne spirit, in witnessing his adoption. And now againe renewed and enlarged by the author, at the desire of diuers good Christians, for the comfort of their troubled consciences, and published by those of his flocke, to whom he did dedicate it for the publike vse of the church.