"the Cloud of Witnesses"
Facsimile of the title page of the first edition
Public DomainFacsimile of the title page of the first edition

A Cloud of Witnesses, for the Royal Prerogatives of Jesus Christ : or, The last speeches and testimonies of those who have suffered for the truth in Scotland, since the year 1680 describes the persecution of the Covenanters which took place during 1680-82 (the ‘Killing Time’). As Robert says, the book contains accounts of unbelievers who are converted by the dying speeches of the Protestant martyrs with whom Robert clearly identifies. However, the fact that it was not published until 1714 would have prevented him from reading it.