I've got an older version of "All Scripture..." (c) 1963, open in front of me, chapter six. Hubby just recently reviewed this section as part of his regular study. Page 315 states,
"However, the book of Matthew was apparently written first in Biblical Hebrew, to serve the Jewish people....The fourth-century Bible translator Jerome confirms this, and says that it was later translated in to the Greek."
As we all know, the WTS uses "apparently" whenever things are not as apparent as they seem. In the same chapter, they admit that the new testament that we know today comes from:
"A Reservoir of 13,600 Manuscripts. A tremendous fund of manuscript copies of all thwenty-seven canonical books is available today....the oldest of these many manuscripts is the papyrus fragment of the Gospel of John in the John Rylands Library in Manchester, England, known by the number P52, and which is dated about A.D. 150."
Hmmm, a google search found me a full Hebrew text of Matthew written in the fourteenth century. Any other hebrew quotes are fragments only.
http://www.religiousstudies.uncc.edu/jdtabor/shemtovweb.html