Gentlemen, your posts have piqued my my interest and I must say you both can be either right or wrong, depending on which commentator you adhere two.
Isaiah 1: 18 "Come now, and let us reason together"
Finis Jennings Dake , after 100,000 hours of intensive bible study states in His annotated reference bible (KJV) Quote "Summary of Saint Luke, Date and place written about 58-63 A.D. Place unknown
Author: Luke, the beloved physician. He was a Jew" unquote
However in the intro to Luke in Spiros Zodhiates, Hebrew-Greek Key Study Bible (KJV) He states quote "There is little doubt that the author was Luke, the "beloved physician" (Col. 4:14). From the context of this passage we learn that Luke was "not of the circumcision" and, consequently he may have been the only Gentile writer of the New Testament"
Zondervan publishing house's NIV Study Bible states,"By process of elimination, Paul's"dear friend Luke the doctor" (Col 4:14) and "fellow worker" (Phm 24), becomes the most likely candidate. His authorship is supported by the uniform testimony of early christian writings (e.g. the Muratorian canon, ad 170, and the works of Irenaeus, c. 180. Luke was probably a Gentile by birth, well educated in Greek culture, a physician by profession.
Even tho weather He was Jew or Gentle is a moot point in the grand scheme of things, perhaps a little careful study might be in order before flatly stating one way or another.
HH Ed in co.