Joshua 9:18

And the children of Israel struck them not, because the leaders of the congregation had sworn to them by the LORD God of Israel. And all the congregation murmured against the leaders.

Psalm 15:4

In whose eyes a vile person is despised; but he honors them that fear the LORD. He that swears to his own hurt, and changes not.

2 Samuel 21:7

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

Ecclesiastes 5:2

Be not rash with your mouth, and let not your heart be hasty to utter anything before God: for God is in heaven, and you upon earth: therefore let your words be few.

Ecclesiastes 5:6

Permit not your mouth to cause your flesh to sin; neither 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 things come 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 that sacrifices, and to him that sacrifices not: as is the good, so is the sinner; and he that swears, as he that 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 the LORD's oath that was between them, between David and Jonathan the son of Saul.
Psalm 15:4
In whose eyes a vile person is despised; but he honors them that fear the LORD. He that swears to his own hurt, and changes not.
Ecclesiastes 5:2
Be not rash with your mouth, and let not your heart be hasty to utter anything before God: for God is in heaven, and you upon earth: therefore let your words be few.
Ecclesiastes 9:2
All things come 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 that sacrifices, and to him that sacrifices not: as is the good, so is the sinner; and he that swears, as he that fears an oath.