The Word became word, or The Word became flesh?

1963:

"This verse—'the Word became flesh'—is the Great Divide.  In all other religions it is Word became word—a philosophy, a moralism, a system, a technique, but for all time and all men everywhere, 'the Word became flesh'—the Idea became Fact."  —E. Stanley Jones, Introduction to The Word became flesh (New York:  Abingdon Press, 1963), 5.

Nothing earlier comes up in Google Books (at least) when searched in English, Latin ("Verbum verbum factum est"), or Greek ("λόγος λόγος ἐγένετο").  But I haven't yet tried any of the European languages.