The Founders would have had no problem with such use. Heck, for many years AFTER the “establishment clause” was adopted in the First Amendment, many of the States still maintained state-supported clergy, and NO federal challenges were raised against such action, because the People knew the “Establishment Clause” ONLY addressed the establishment of a national religion, specific to one denomination.

Modern misreading of the First Amendment (heck, the Constitution as a whole), at the behest of communist organizations like the ACLU, is responsible for a multiple of cultural/societal sins, not the least of which is the muting of religious practice by religious folks themselves.