My first experience in going to a church was when I attended a funeral of my workmate in a Uniting Church of christendom
The church was packed and the service was respectful as you would expect , however what surprised me was one of the songs that was sung out of two ,was a song of praise using the name Jehovah ,apart from the eulogy ,speakers etc for the deceased.
So much for christendom hiding Jehovahs name , not making it known.
The name Jehovah has been around for seven centuries since it was first coined in the 13th century long before Jehovah`s Witnesses came on the scene.in the 20th century.