The Skeireins is the second-longest known surviving text in the Gothic language, after the version of the Bible by Wulfilas. It consists of eight fragments of a commentary on the Gospel of John which is commonly held to have originally extended over seventy-eight parchment leaves. It owes its title to the 19th-century German scholar Hans Ferdinand Massmann, who was the first to issue a comprehensive and correct edition of it: "Skeireins" means "explanation" in Gothic.