James 5:12
But most of all, my brothers, do not take oaths, not by the heaven, or by the earth, or by any other thing: but let your Yes be Yes, and your No be No: so that you may not be judged.
Matthew 5:33-37
Again, you have knowledge that it was said in old times, Do not take false oaths, but give effect to your oaths to the Lord:
Matthew 23:16-22
A curse is on you, blind guides, who say, Whoever takes an oath by the Temple, it is nothing; but whoever takes an oath by the gold of the Temple, he is responsible.
1 Corinthians 11:34
If any man is in need of food, let him take his meal in his house; so that you may not come together to your damage. And the rest I will put in order when I come.
2 Corinthians 1:17-20
If then I had such a purpose, did I seem to be changing suddenly? or am I guided in my purposes by the flesh, saying, Yes, today, and, No, tomorrow?
James 3:1-2
Do not all be teachers, my brothers, because we teachers will be judged more hardly than others.
1 Peter 4:8
And most of all be warm in your love for one another; because in love there is forgiveness for sins without number:
3 John 1:2
My loved one, it is my prayer that you may do well in all things, and be healthy in body, even as your soul does well.