I'm wondering if it is depicting the Apostles Creed:
I believe in God the Father Almighty,
maker of heaven and earth;
And in Jesus Christ his only Son our Lord:
who was conceived by the Holy Spirit,
born of the Virgin Mary, (the 2 people on the right look like Mary & Joseph with Mary holding baby Jesus)
suffered under Pontius Pilate, (Pontius Pilate looks like the guy in the middlle)
was crucified, dead, and buried; (There is a cross like item in Jesus hand in the middle of the plate)
the third day he rose from the dead; (Mary Magdelene is anointing Jesus' head. Behind M.M.'s head looks to be a tomb.)
he ascended into heaven,
and sitteth at the right hand of God the Father Almighty;The God figure on the left is holding a child with his right hand)
from thence he shall come to judge the quick and the dead.
I believe in the Holy Spirit,
the holy catholic church,
the communion of saints, It looks like communion on the table)
the forgiveness of sins,
the resurrection of the body,
and the life everlasting. Amen.