James 5:12

Now above all, my brothers, do not swear, either by heaven or by earth or with any other oath. Your “yes” must be “yes,” and your “no” must be “no,” so that you won’t fall under judgment.

Matthew 5:33-37

“Again, you have heard that it was said to our ancestors, You must not break your oath, but you must keep your oaths to the Lord.

Matthew 23:16-22

“Woe to you, blind guides, who say, ‘Whoever takes an oath by the sanctuary, it means nothing. But whoever takes an oath by the gold of the sanctuary is bound by his oath.’

1 Corinthians 11:34

If anyone is hungry, he should eat at home, so that when you gather together you will not come under judgment. And I will give instructions about the other matters whenever I come.

2 Corinthians 1:17-20

So when I planned this, was I irresponsible? Or what I plan, do I plan in a purely human way so that I say “Yes, yes” and “No, no” simultaneously?

James 3:1-2

Not many should become teachers, my brothers, knowing that we will receive a stricter judgment,

1 Peter 4:8

Above all, maintain an intense love for each other, since love covers a multitude of sins.

3 John 1:2

Dear friend, I pray that you may prosper in every way and be in good health physically just as you are spiritually.

Treasury of Scripture Knowledge

Summary

But above all things, my brethren, swear not, neither by heaven, neither by the earth, neither by any other oath: but let your yea be yea; and your nay, nay; lest ye fall into condemnation.

General references

Bible References

Above

1 Peter 4:8
Above all, maintain an intense love for each other, since love covers a multitude of sins.
3 John 1:2
Dear friend, I pray that you may prosper in every way and be in good health physically just as you are spiritually.

Swear not

Matthew 5:33
“Again, you have heard that it was said to our ancestors, You must not break your oath, but you must keep your oaths to the Lord.
Matthew 23:16
“Woe to you, blind guides, who say, ‘Whoever takes an oath by the sanctuary, it means nothing. But whoever takes an oath by the gold of the sanctuary is bound by his oath.’

But

2 Corinthians 1:17
So when I planned this, was I irresponsible? Or what I plan, do I plan in a purely human way so that I say “Yes, yes” and “No, no” simultaneously?

Lest

James 3:1
Not many should become teachers, my brothers, knowing that we will receive a stricter judgment,
1 Corinthians 11:34
If anyone is hungry, he should eat at home, so that when you gather together you will not come under judgment. And I will give instructions about the other matters whenever I come.

General references

Deuteronomy 5:11
Do not misuse the name of the Lord your God, because the Lord will not leave anyone unpunished who misuses His name.

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.