And he that doubts is condemned if he eats, because he eats not of faith: for whatever is not of faith is sin.
All Commentaries on Romans 14:23 Go To Romans 14
Gregory of Nyssa
AD 394
Every word or deed or thought which does not look to Christ looks completely to the adversary of Christ. For it is not possible for what is outside of light or life not to be completely in darkness or death…. The person outside of Christ rejects him by what he thinks, does or says. .