He also edited a monthly magazine, The Sword and Trowel; an elaborate exposition of the Psalms, in seven volumes, called The Treasury of David (1870-1885); and a book of sayings called John Ploughman's Talks; or, Plain Advice for Plain People (1869), a kind of religious Poor Richard.
They are occasionally adulterated with the leaves of Inula Conyza, ploughman's spikenard, which may be distinguished by their greater roughness, their less divided margins, and their odour when rubbed; also with the leaves of Symphytum officinale, comfrey, and of Verbascum Thapsus, great mullein, which unlike those of the foxglove have woolly upper and under surfaces.
Two appeared about the time of the martyrdom of Oldcastle - The Ploughman's Prayer and the Lanthorne of Light.
The Ploughman's Prayer declared that true worship consists in three things - in loving God, and dreading: God and trusting in God above all other things; and it showed how Lollards, pressed by persecution, became further separated from the religious life of the church.
30 the church may be gathered from the ballads preserved in the Political Poems and Songs relating to English History, published in 1859 by Thomas Wright for the Master of the Rolls series, and in the Piers Ploughman poems. Piers Ploughman's Creed (see Langland) was probably written about 1394, when Lollardy was at its greatest strength; the ploughman of the Creed is a man gifted with sense enough to see through the tricks of the friars, and with such religious knowledge as can be got from the creed, and from Wycliffe's version of the Gospels.