Yeah, "under god" was not added to currency or the pledge until 1954, in response to the civil rights movement of the era. The founding fathers would have be rolling in their grave if they could.

https://www.washingtonpost.com/news/retropolis/wp/2018/06/14/the-gripping-sermon-that-got-under-god-added-to-the-pledge-of-allegiance-on-flag-day/