If you are to really understand the spiritual call of the laity, you must go back to the Old Testament. God's plan was for the entire nation of Israel to be "priests" or ministers:
Para tunay mong maunawaan ang espirituwal na tawag sa layko, dapat kang bumalik sa Lumang Tipan. Ang plano Ng Dios para sa buong bansa ng Israel ay para maging “saserdote” o ministro: