'Obligation' in the Bible

Now those who were to camp before the tabernacle eastward, before the tent of meeting toward the sunrise, are Moses and Aaron and his sons, performing the duties of the sanctuary for the obligation of the sons of Israel; but the layman coming near was to be put to death.

They may, however, assist their brothers in the tent of meeting, to keep an obligation, but they themselves shall do no work. Thus you shall deal with the Levites concerning their obligations.”

And they shall thus attend to your obligation and the obligation of all the tent, but they shall not come near to the furnishings of the sanctuary and the altar, or both they and you will die.

If a man makes a vow to the Lord, or takes an oath to bind himself with a binding obligation, he shall not violate his word; he shall do according to all that proceeds out of his mouth.

“Also if a woman makes a vow to the Lord, and binds herself by an obligation in her father’s house in her youth,

and her father hears her vow and her obligation by which she has bound herself, and her father says nothing to her, then all her vows shall stand and every obligation by which she has bound herself shall stand.

However, if she vowed in her husband’s house, or bound herself by an obligation with an oath,

and her husband heard it, but said nothing to her and did not forbid her, then all her vows shall stand and every obligation by which she bound herself shall stand.

But if her husband indeed annuls them on the day he hears them, then whatever proceeds out of her lips concerning her vows or concerning the obligation of herself shall not stand; her husband has annulled them, and the Lord will forgive her.

and the land is subdued before the Lord, then afterward you shall return and be free of obligation toward the Lord and toward Israel, and this land shall be yours for a possession before the Lord.

We also placed ourselves under obligation to contribute yearly one third of a shekel for the service of the house of our God: