'Vow' in the Bible
"Tell the Israelis that a man or woman who commits to the vow of the Nazirite, is to be separated to the LORD,
This is to be the law of the Nazirite when he commits his offering to the LORD on account of his consecration, over and beyond what he owns alone plus whatever he can provide, based on the vow from his own mouth that he vows to fulfill on account of the law of his consecration."
when you enter the land where you'll be living that I'm about to give you, you are to make an offering by fire to the LORD, either a burnt offering, a sacrificial offering to fulfill a vow, or a voluntary offering at the appointed time, to make a pleasing aroma to the LORD either from your cattle or from your flocks.
"When you prepare a bull as a burnt offering, or as a sacrifice to fulfill a vow, or for peace offerings to the LORD,
Then Israel made this vow in the LORD's presence: "If you give these people into our control, we intend to devote their cities to total destruction."
"When a man makes a vow to the LORD, or swears an oath an obligation that is binding to himself he is not to break his word. Instead, he is to fulfill whatever promise came out of his mouth.'"
"When a young woman makes a vow to the LORD or pledges herself to an obligation while she still lives in her father's house,
and her father hears her vow and the obligations that she had pledged herself to fulfill, yet her father keeps silent about it, then all her vows and every obligation she pledged herself to are to stand.
"If she has a husband and she makes a vow that is binding on herself, or if she makes a hasty vow with her mouth that she pledges herself to fulfill,
and her husband hears her vow, yet remains silent on the day that he hears it, then her vows are to stand and the obligation to which she had pledged herself is to stand.
If, while she had been living in her late or former husband's house, she makes a vow or a promise that binds her with an oath,
Her husband may confirm or revoke every vow and binding obligation that afflicts her.