“Confess your sins to one another and pray for one another.”
“Let all things be done for building up.”
Let’s get the obvious out of the way first: whenever one presumes
to associate verses about different subjects, it is pretty much obligatory to
acknowledge what they mean in their original contexts. Long time readers of the
New Testament will already know my first quotation comes from James, and has to
do with sick Christians who feel they are under judgment telling mature
believers the previously-concealed truth, whatever that might be, in hope of
being healed. They will also surely be familiar with the second quote, which
has the apostle Paul observing the governing metric by which Christians may assess
the value of verbal contributions during their gatherings.
Both verses are bigger than their immediate contexts. They
embody principles we may quite reasonably apply in circumstances other than
those specifically addressed by the NT writers.