Karl Ecke, Schwenckfeld, Luther, und der Gedanke einer apostolischen Reformation (Berlin, 1911). Important book, but to be followed with caution.

R. H. Grützmacher, Wort und Geist (Leipzig, 1902).

Gottfried Arnold, Kirchen- und Ketzer-Historien, i. pp. 1246-1299.
(Edition of 1740.)

H. W. Erbkam, Geschichte der prolestantischen Sekten im Zeitaller der
Reformation
(Hamburg und Gotha, 1848), pp. 357-475.

Döllinger, Die Reformation, i. pp. 257-280.

Ernst Troeltsch, Die Soziallehren der christlichen Kirchen und
Gruppen
(Tübingen, 1912), pp. 881-886.

[2] Christ, Schwenckfeld insisted, is the sum of the whole Bible, and to learn to know Christ fundamentally is to grasp the substance of the entire Scripture.

[3] He wrote in 1543 to Luther: "I owe to you in God and the truth all honour, love, and goodwill, because from the first I have reaped much fruit from your service, and I have not ceased to pray for you according to my poor powers."—Schriften, ii. p. 701 d.

[4] In An Epistle to the Sisters in the Cloister at Naumberg, written probably in the autumn of 1523, he says: "A true Christian life in its essential requirements does not consist in external appearance . . . but quite the contrary, it does consist in personal trust in God through an experience of Jesus Christ, which the Holy Ghost brings forth in the heart by the hearing of the Divine Word."—Corpus Schwenckfeldianorum, i. p. 118.

[5] Ermahnung dess Missbrauchs etlicher fürnemsten Artikel des Evangelii (1524). Corpus Schw. ii. pp. 26-105.