James 5:12
But above all, my brothers, do not swear, either by heaven or by earth or by any other oath, but let your "yes" be yes and your "no" be no, so that you may not fall under condemnation.
Matthew 5:33-37
"Again you have heard that it was said to those of old, 'You shall not swear falsely, but shall perform to the Lord what you have sworn.'
1 Corinthians 11:34
if anyone is hungry, let him eat at home--so that when you come together it will not be for judgment. About the other things I will give directions when I come.
2 Corinthians 1:17-20
Was I vacillating when I wanted to do this? Do I make my plans according to the flesh, ready to say "Yes, yes" and "No, no" at the same time?
James 3:1-2
Not many of you should become teachers, my brothers, for you know that we who teach will be judged with greater strictness.
1 Peter 4:8
Above all, keep loving one another earnestly, since love covers a multitude of sins.
3 John 1:2
Beloved, I pray that all may go well with you and that you may be in good health, as it goes well with your soul.