Christian
God-fearing man
accepter
believer
catechumen
churchgoer
churchite
churchman
communicant
convert
daily communicant
devotee
devotionalist
disciple
fanatic
fideist
follower
good Christian
neophyte
pietist
proselyte
receiver
religionist
religious believer
saint
the assured
the believing
the faithful
theist
true believer
votary
zealot
admirer
booster
champion
friend
protagonist
supporter
Confucian
Malthusian
abiogenist
apostle
colonialist
confucianist
evolutionist
imperialist
vitalist