It "repealed, annulled and made void to all intents and purposes" the Clergy Act 1640, which had prevented those in holy orders from exercising any temporal jurisdiction or authority and so, expelled the bishops, as Lords Spiritual, from the House of Lords.
The Clergy Act of 1640 was completely abolished, rendering it null and void. As a result, the bishops were expelled from the House of Lords because they had been barred from exercising temporal power by this act.