Thematic Bible: Obligatory when signified in a vow
Thematic Bible
Offerings » Free-will » Obligatory when signified in a vow
And thou shalt do the solemn feast of weeks unto the LORD thy God; out of the voluntary abundance of thy hand thou shalt give, according as the LORD thy God has blessed thee.
That which is gone out of thy lips thou shalt keep and perform, that which thou hast promised unto the LORD thy God, that which thou hast spoken of thy free will with thy mouth.