Matthew 5:33-34

Again ye have heard that it was said to those of old, "Thou shalt not perjure thyself, but shalt perform to the Lord thine oaths:"

James 5:12

But above all things, my brethren, swear not, neither by heaven, nor by earth, nor by any other oath: but let your yea be yea, and your no, no; that ye fall not under condemnation.

Treasury of Scripture Knowledge

Summary

Thou shalt not take the name of the LORD thy God in vain: for the LORD will not hold him guiltless that taketh his name in vain.

General references

Bible References

General references

Matthew 5:33
Again ye have heard that it was said to those of old, "Thou shalt not perjure thyself, but shalt perform to the Lord thine oaths:"
James 5:12
But above all things, my brethren, swear not, neither by heaven, nor by earth, nor by any other oath: but let your yea be yea, and your no, no; that ye fall not under condemnation.