N.B. Not all those who argue or argued for Exclusive Psalmody make hymns completely off limits for edification. So you will find differeing views on this now, and in the past. John Brown of Wamphray for instance limits his argument for the singing of the 150 Psalms to the public worship of the church. Brown was one of the leading covenanter writers during the killing times and a very early defender of EP; a translation of his writing on the subject found in his huge Latin work defending the Christian Sabbath, concludes in the 2009 issue of The Confessional Presbyterian journal (forthcoming this Fall, D.V.).