Kumbukumbu La Torati 23:23

Chochote kitakachotamkwa kwa midomo yako ni lazima uhakikishe umekifanya, kwa sababu uliweka nadhiri yako kwa hiari mbele za Bwana Mungu wako kwa kinywa chako mwenyewe.

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.