Carissimi, nolite omni spiritui credere, sed probate spiritus si ex Deo sint: quoniam multi pseudoprophetæ exierunt in mundum.
Dearly beloved, believe not every spirit, but try the spirits if they be of God: because many false prophets are gone out into the world.
- Try the spirits: That is, by examining whether their teaching be agreeable to the rule of the Catholic faith, and the doctrine of the church. For as he says, (ver. 6,) He that knoweth God, heareth us [the pastors of the church]. By this we know the spirit of truth, and the spirit of error.