Yes be Yes
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Matthew 5:37
Simply let your ‘Yes’ be ‘Yes,’ and your ‘No,’ ‘No.’ Anything more comes from the evil one.
James 5:12
Above all, my brothers, do not swear, not by heaven or earth or by any other oath. Simply let your “Yes” be yes, and your “No,” no, so that you will not fall under judgment.
Hebrews 6:16
Men swear by someone greater than themselves, and their oath serves as a confirmation to end all argument.