I like
#30. Theologically the logo is sound. The design looks good. I would like to explore some limits with this design if you are open to the ideas. What would it look like if you used the current design as is and placed it in the “Center” of an ornate Monstrance. Second idea, keep the design as is, and place the “4 Marks of the church” (One, Holy, Catholic, Apostolic Church) on the outside of the circle. Thirdly, use the current design and replace the “Chi Rho” in Greek with the Icon of the Holy Trinity.