James 5:12-13

12Here is another important thing to remember, my Christian friends. When you want to make a strong promise, never use extra words. Do not say, ‘I promise by heaven,’ or ‘I promise by the earth.’ Do not use any extra words like that. When you say ‘yes,’ that should be enough. When you say ‘no,’ that should also be enough. If you say more than that, God will say that you are guilty.

13Is anyone among you in trouble? Then they should pray to God about it. Or, is anyone feeling happy? They should praise God with songs.