Are there Reformed associations that prohibit or strongly discourage member churches from the singing of hymns with non-biblical texts? Or, is that something that all Reformed associations leave to the discretion of the member congregation?
There are some denominations which hold to "Exclusive Psalmody" and/or "Non-instrumentation". I'm sure someone else can give you a list of all of them. There are several members here to belong to churches which practice this. But one that comes to my mind immediately is the RCPNA (Covenanters).
Pilgrim means the RPCNA Reformed Presbyterian Church of North America www.rpcna.org
They are the largest US body which takes this stance.
Thanks, unfortunately the RPCNA has no congregations in TN.
I've drawn a blank looking at smaller exclusive psalmody denominations too. Sorry. You'll just have to sing a few hymns.