'Fulfill' in the Bible

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,

God is not a human male he doesn't lie, nor is he a human being he never vacillates. Once he speaks up, he's going to act, isn't he? Once he makes a promise, he'll fulfill it, won't he?

"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.'"

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.

But if her father disallows her on the same day that he hears what she has said, then all her vows and every obligation she had pledged herself to fulfill are not to stand. The LORD will forgive her, because her father has forbidden her."

"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,

But if, on the same day her husband hears and disallows her, then he has revoked her vows that she made for herself, along with any hasty vows that she spoke and to which she pledged herself to fulfill. The LORD will forgive her."

"Everything that a widow or a divorced woman pledges herself to fulfill are to be binding on her.

and her husband hears it but remains silent, not disallowing it, then all her vows are to stand, along with every obligation that she has pledged to fulfill.

But if her husband remains silent about her from day to day, then he has affirmed all her vows or obligations that she has obligated herself to fulfill. He has affirmed them because he remained silent from the day he heard her vows.