Joshua 9:18

And the sons of Israel did not strike them, because the rulers of the congregation had sworn to them by Jehovah, the God of Israel. And all the congregation murmured against the rulers.

Psalm 15:4

in whose eyes the reprobate is despised, but he honors those who fear Jehovah; he has sworn to his hurt, and does not change it;

2 Samuel 21:7

But the king spared Mephibosheth, the son of Jonathan the son of Saul, because of Jehovah's oath that was between them, between David and Jonathan the son of Saul.

Ecclesiastes 5:2

Do not be rash with your mouth, and do not let your heart be hasty to say a word before God. For God is in Heaven, and you are on earth; therefore let your words be few.

Ecclesiastes 5:6

Do not allow your mouth to cause your flesh to sin; do not say before the angel that it was an error. Why should God be angry at your voice and destroy the work of your hands?

Ecclesiastes 9:2

All happens alike to all; there is one event to the righteous and to the wicked; to the good and to the clean, and to the unclean; to him who sacrifices, and to him who does not sacrifice. As is the good, so is the sinner. He who swears is as he who fears an oath.

Treasury of Scripture Knowledge

Summary

And the children of Israel smote them not, because the princes of the congregation had sworn unto them by the LORD God of Israel. And all the congregation murmured against the princes.

Bible References

Had sworn

2 Samuel 21:7
But the king spared Mephibosheth, the son of Jonathan the son of Saul, because of Jehovah's oath that was between them, between David and Jonathan the son of Saul.
Psalm 15:4
in whose eyes the reprobate is despised, but he honors those who fear Jehovah; he has sworn to his hurt, and does not change it;
Ecclesiastes 5:2
Do not be rash with your mouth, and do not let your heart be hasty to say a word before God. For God is in Heaven, and you are on earth; therefore let your words be few.
Ecclesiastes 9:2
All happens alike to all; there is one event to the righteous and to the wicked; to the good and to the clean, and to the unclean; to him who sacrifices, and to him who does not sacrifice. As is the good, so is the sinner. He who swears is as he who fears an oath.