TSK · Numbers 30:3

Speak unto the children of Israel, and say unto them, When either man or woman shall make a special vow, the vow of a Nazirite, to separate himself unto Jehovah,

And the children of Israel smote them not, because the princes of the congregation had sworn unto them by Jehovah, the God of Israel. And all the congregation murmured against the princes.

And she vowed a vow, and said, O Jehovah of hosts, if thou wilt indeed look on the affliction of thy handmaid, and remember me, and not forget thy handmaid, but wilt give unto thy handmaid a man-child, then I will give him unto Jehovah all the days of his life, and there shall no razor come upon his head.

Offer unto God the sacrifice of thanksgiving; And pay thy vows unto the Most High: