37) “Judge not, and you shall not be judged. Condemn not, and you shall not be condemned. Forgive, and you will be forgiven. NKJV

What constitutes condemning here? Is it a verbal act? A thought? Both? Is it, "You're going to hell because you did this!" (Either in the mind or through the mouth.) Is there a difference between acknowledging someone doesn't know the Lord and is going to hell and condemning someone? I've heard a pastor say something like, "I don't know where he was spiritually, but...hopefully etc." Thank you in advance and may God bless you.