In one manner or another, at least 4 passages in the NT instruct us about ungodly communication:
Matthew 5:37 But let your communication be, Yea, yea; Nay, nay: for whatsoever is more than these cometh of evil.
1 Corinthians 15:33 Be not deceived: evil communications corrupt good manners.
Ephesians 4:29 Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers.
Colossians 3:8 But now ye also put off all these; anger, wrath, malice, blasphemy, filthy communication out of your mouth.
How do these passages apply to our understanding of what worship is acceptable to God and what worship is not?