 His first solo work "The communion of saincts" (1607) is summarised by the historian of Separatism Stephen Tomkins as arguing 'that the true church is a holy community while a church that incorporates the entire population is neither holy nor a community'.Tomkins describes his second book "Covnterpoyson" (1608) as 'the most compelling apologia that the Separatist movement ever produced'.It was written in reply to the puritan minister John Sprint and to Richard Bernard's "The Separatist Schisme".