§ 02 · King James Bible
Deuteronomy 23:23
That which is gone out of thy lips thou shalt keep and perform; even a freewill offering, according as thou hast vowed unto the LORD thy God, which thou hast promised with thy mouth.
Simple English
Whatever you say, you should keep and do, like a voluntary gift. It should be based on your promise to the Lord, which you said with your mouth.
* Work in progress - there may be occasional inaccuracies