Not sure of the origin of that gesture. Truman and Harding were masons. There are probably closet masons. Kissing the Bible has been in masonic liturgy. They say they are not a religion.
George Washington was a mason. There are pictures of him in masonic garb being sworn in to the office of President, USA. The Bible used was Masonic--it still exists and has been used in recent years. There is an interesting story about how the District of Columbia is laid out in terms of monuments, streets, etc. There is some interesting conjecture about the symbols on the dollar bill.
There is an interesting story about the LDS and Masonry.
There has been a serious infiltration by masonry in the ranks of Baptists, etal. Deacon boards with a majority of masons make the decisions for the congregation. Is that still a problem?
Masons reportedly have a sheepskin cloth they wear daily for protection. It is also a burial cloth--to ward off the skin worms.
Interesting midnight reading? Or time to check the lampoil level?
Beware of wolves dressed like sheep.
Even so come Lord Jesus.