From the unconfirmed rule of 1221

All-powerful, most holy, most high and supreme God,
     Holy and just Father,
     Lord, King of heaven and earth,
we thank You for Yourself,
     for through Your holy will
     and through Your only Son
     You have created all things spiritual and corporal and,
     having made us in Your own image and likeness,
     You placed us in paradise.
And through our own fault we have fallen.
And we thank You,
     for as through Your Son You created us,
     so also, through Your holy love, with which You loved us,
     You brought about His birth
          as true God and true man
          by the glorious, ever-virgin, most blessed, holy Mary
     and You willed to redeem us captives
          through His cross and blood and death.
And we thank You
     for Your Son Himself will come again
     in the glory of His majesty
     to send the ones
     who have not done penance and who have not known You
     into the eternal fire,
     and to say to all those who have known You
     and have adored You
     and have served You in penance
     "Come, you blessed of my Father,
     receive the kingdom,
     which has been prepared for you
     from the beginning of the world."
And because all of us
     wretches and sinners
     are not worthy to pronounce Your name,
we humbly ask that
     our Lord Jesus Christ,
     Your beloved Son
     in whom You were well pleased,
together with the Holy Spirit, the Paraclete,
     give you thanks
     as it please You and Him
     for everything,
     He Who always satisfies You in everything,
     through Whom You have done such great things for us.
Amen