Act of Faith

O my God, I firmly believethat thou art one God in three divine Persons,Father, Son, and Holy Spirit.I believe that thy divine Son became manand died for our sins,and that he will come to judge the living and the dead.I believe these and all the truthswhich the holy Catholic Church teaches,because thou hast revealed them,who canst neither deceive nor be deceived.Amen.

In Latin

Domine Deus,firma fide credo et confiteoromnia et singula quaesancta Ecclesia Catholica proponit,quia tu, Deus, ea omnia revelasti,qui es aeterna veritas et sapientiaquae nec fallere nec falli potest.In hac fide vivere et mori statuo.Amen.

The Latin act, as the Compendium gives it, is worded a little differently from the traditional English above.

Latin text: Compendium of the Catechism of the Catholic Church, Appendix.