As you will see in this article UBF has a history of vainglory even before it broke of from the Presbyterian Church.
This is an article on UBF back when it was still part of the true church. As you can see through the article there are roots of UBFism.  This is commentary from my friend in Germany who first leaked out the content. () This is my commentary.
No. 2 1971, p. 29-32,
a quarterly magazine for East Asian students
edited by Chua Wee Hian.
the article was written by Sarah Barry.] (This might have actually been written by Chua Wee Hian, someone that Barry hired to make UBF look authentic.)