'Legally' in the Bible

At an earlier period in Israel, a man removed his sandal and gave it to the other party in order to make any matter legally binding concerning the right of redemption or the exchange of property. This was the method of legally binding a transaction in Israel.

On that same day men were placed in charge of the rooms that housed the supplies, contributions, firstfruits, and tenths. The legally required portions for the priests and Levites were gathered from the village fields, because Judah was grateful to the priests and Levites who were serving.

For example, a married woman is legally bound to her husband while he lives. But if her husband dies, she is released from the law regarding the husband.

For if the message spoken through angels was legally binding and every transgression and disobedience received a just punishment,

But Jesus has now obtained a superior ministry, and to that degree He is the mediator of a better covenant, which has been legally enacted on better promises.