Decently: Paul uses a word closely related to those translated by Good News Bible as “right” in 7.35 and “beautiful” in 12.24. “Proper” (Good News Bible) is probably better than Revised Standard Version‘s decently.

One may translate this verse as follows:
• “You must do everything in a proper and orderly way.”

Quoted with permission from Ellingworth, Paul and Hatton, Howard A. A Handbook on Paul’s First Letter to the Corinthians, 2nd edition. (UBS Handbook Series). New York: UBS, 1985/1994. For this and other handbooks for translators see here .