Callahan, Rev. Michael D books & textbook
What is a Christian: An Ancient Perspective (Authentic Faith)
Independently published /2023-06-19 Paperback / 306 Pages
Pray Without Ceasing: Experience a Revival of One (Authentic Faith)
Independently published /2023-01-23 Paperback / 160 Pages
Deathly Silence: What's the Deal With Sin in Our Age? (Authentic Faith)
Independently published /2020-08-06 Paperback / 205 Pages
