Spiritual? Well, if you think Trump is some sort of High Muckety-muck, or perhaps Eliyahu in disguise????
The issue is whether the United States recognized the 1949 line as an armistice law (temporary) or a permanent border. Most of the world sees it as an armistice line, and arguably so do most Israelis (remember if the 1949 line is a permanent border, then all settlements in the West Bank are clearly illegal). As far as the Muslims are concerned, and if the Israelis want peace they are the only ones whose opinions matter, the last lawful permanent border between Islamic and non-Islamic worlds was in 1914.
Trump’s decision will appeal largely to his political base, and was based on domestic concerns affected by both the Senate election in Alabama and the debate over tax reform.