Two kinds are mentioned in the Bible; a sharp instrument which cut letters in stone (Job 19: 24) and one cut from a reed, with a knife (Jer. 36: 23), used for personal letter‐writing on papyrus (3 John 13).
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"pen." In A Dictionary of the Bible. Ed. W. R. F. Browning. Oxford Biblical Studies Online. Mar 1, 2015. <http://www.oxfordbiblicalcstudies.com/article/opr/t94/e1437>.
"pen." In A Dictionary of the Bible. , edited by W. R. F. Browning. Oxford Biblical Studies Online, http://www.oxfordbiblicalcstudies.com/article/opr/t94/e1437 (accessed Mar 1, 2015).