Even an unbelieving husband or wife is sanctified by a believing partner.
The unbelieving Jews are "a synagogue of Satan" (ii.
The unbelieving receive the external sign or sacramentum; but the believing receive in addition, although invisibly, the reality represented by the sign, the res sacramenti.
He assisted the first efforts of the Reformation at Magdeburg (1524), at Goslar (I 531) and at Einbeck (1534); took an active part in the debates at Schmalkalden (1537), where he defended the use of the sacrament by the unbelieving; and (1539) spoke out strongly against the bigamy of the landgrave of Hesse.
For the unbelieving husband is sanctified because of the wife, and the unbelieving wife because of her husband.