Zechariah 12: 7: The LORD also shall save the tents of Judah first, that the glory of the house of David and the glory of the inhabitants of Jerusalem do not magnify themselves against Judah.
July 17, B.C. 606 (Judah ceased to be a nation) to August 10, B.C. 588 (the Jews lost control of Jerusalem; 2 Kings 25: 4) is 19 years.
May 14, 1948 (Israel became a nation) to June 7, 1967 (the Jews took control of Jerusalem during the Six Day War) is 19 years.