German OT scholar at Marburg. He was responsible for refining the theory that the Pentateuch was an edited composition of four sources each deriving from a different historical period. They were given the symbols J, E, D, P.
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"Wellhausen, Julius." In A Dictionary of the Bible. Ed. W. R. F. Browning. Oxford Biblical Studies Online. Feb 27, 2015. <http://www.oxfordbiblicalcstudies.com/article/opr/t94/e2028>.
"Wellhausen, Julius." In A Dictionary of the Bible. , edited by W. R. F. Browning. Oxford Biblical Studies Online, http://www.oxfordbiblicalcstudies.com/article/opr/t94/e2028 (accessed Feb 27, 2015).