Deuteronomy 23:21-23 -

Vows to God to be performed.

The vow here made is supposed to be entirely voluntary. It was "a free-will offering." In Numbers 30:3-8 , abuse is guarded against. Yews made without the knowledge or consent of the father or husband were to be of no force. No priest had any warrant from the Mosaic institutes to come between a young woman and her father, or between husband and wife. Vows to God were to he completely spontaneous, as between the soul and God. They were not to he extorted by others, nor yet to involve the entanglement of others.