'Imposed' in the Bible

If I go on preaching the Good News, that is nothing for me to boast of; for the necessity is imposed upon me; and alas for me, if I fail to preach it!

Why then was the Law given? It was imposed later on for the sake of defining sin, until the seed should come to whom God had made the promise; and its details were laid down by a mediator with the help of angels.

For their efficacy depends only on meats and drinks and various washings, ceremonies pertaining to the body and imposed until a time of reformation.