NET

23 Whatever you vow, you must be careful to do what you have promised, such as what you have vowed to the Lord your God as a freewill offering.

Darby

23 What is gone out of thy lips thou shalt keep and do, as thou hast vowed to Jehovah thy God, the voluntary-offering that thou hast promised with thy mouth.

KJV

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.

Strong's

23 That which is gone out^H4161 of thy lips^H8193 thou shalt keep^H8104 and perform^H6213; even a freewill offering^H5071, according as thou hast vowed^H5087 unto the LORD^H3068 thy God^H430, which thou hast promised^H1696 with thy mouth^H6310.