Junius remained resident in England for more than twenty years, but upon the revolt against Charles I in 1642, he joined the Earl and his wife to the Low Countries. Soon after his return in Holland, Junius became interested in the history of the Dutch language, an interest that quickly spread to the oldest phases of other Germanic languages. As a result, he published a commentary on an Old High German paraphrase of the Song of Songs, the first edition of a collection of Old English poems, and the first edition, together with an extensive dictionary, of the Gothic Gospels. Upon his death a number of lexicographical works remained unpublished, of which an English etymological dictionary was published posthumously. Samuel Johnson's "Dictionary" used two main sources for its Teutonic etymologies: Junius's "Etymologicum Anglicanum" (in a posthumous edition edited by Edward Lye) and Stephen Skinner's "Etymologicon Linguæ Anglicanæ".