- Independent churches1
- Institutionalism (Religion)1
- Intergenerational relations1
- Internship programs1
- Interpersonal relations1
- Jesus Christ as an example to be followed1
- Joy Korean-American Church (Queens, NY)1
- Judson Memorial Baptist Church (Joliet, Ill)1
- Jung, C. G. (Carl Gustav), 1875-19611
- Kingdom of God1
- Kinship1
- Knollwood Baptist Church (Winston-Salem, NC)1
- Kouts Christian Church (Kouts, Ind)1
- LaSalle Street Church (Chicago, Ill)1
- Lay preaching1
- Lewis, C. S. (Clive Staples), 1898-19631
- Living wage movement1
- Lord's Supper--Methodist Church1
- Macquarrie, John1
- Marriage compatibility tests1