“I have trouble expressing what I’m thinking.”
^
see also:
Nuance is difficult for me in a text-only setting.
FTFY
Yes.
“Ce qui se conçoit bien s’énonce clairement” (Nicolas Boileau)
or, in English : “What is clearly thought out is clearly expressed”.
So maybe this whole idea of “I’m 100% sure that God exists but I cannot explain clearly why” is not as clearly thought as you say it is…