The Religion Act 1580 (23 Eliz.1 c. 1) fined and imprisoned those who celebrated the Mass or attended a Mass. The Jesuits, etc. Act 1584 (27 Eliz.1, c. 2) commanded all Roman Catholic priests to leave the country in forty days or be punished for high treason unless, within the 40 days, they swore an oath to obey the Queen. Those who harboured them, and all those who knew of their presence and failed to inform the authorities would be fined and imprisoned for felony. It also provided an incentive to informers by according them one-third of any forfeitures.