Christianity vindicated, or, The fundamental truths of the Gospel concerning the person of Christ and redemption through faith in him maintained [electronic resource] : against the cavils and groundless exceptions of Andrew Robeson and George Keith, Gawen Lawrie and George White-head, who are called by the name Quakers : being a reply to a book published by these men in opposition unto a book intituled A testimony to the true saviour / by Robert Gordon.