A treatise of the cohabitacyon of the faithfull with the vnfaithfull. / Whereunto is added. A sermon made of the confessing of Christe and his gospell, and of the denyinge of the same.

The treatise examines whether faithful Christians may live and maintain familiar intercourse with unbelievers, distinguishing between free cohabitation and situations where inhabitants are compelled to participate in superstitious rites. It proposes divisions of social rank and individual capacity (learned and strong versus weak), and sets conditional rules permitting residence only when believers instruct others, live holy lives, and refrain from participating in rites deemed idolatrous; it explicitly rejects attendance at certain masses as a profanation of the Lord's Supper. The work also addresses rulers' duties to preserve pure religion, the treatment of Jews, and counters legal and scriptural arguments used to justify close fellowship with adherents of the papal church.