I personally made a decision not to celebrate Christmas coz the Bible tells us to only partake in Gods appointed feasts!! it is a personal choice but if we want to please God and have His Blessings on and in our lives we need to honour Him in everything. If people took the time to look into...
Clamor (7 Occurrences)
... 7. (vi) To utter loud sounds or outcries; to vociferate; to complain; to make
importunate demands. Multi-Version Concordance Clamor
So I would think that Paul is saying don't moan, complain etc :)