'Thanks' in the Bible

If I partake with thankfulness, why am I slandered concerning that for which I give thanks?

and when He had given thanks, He broke it and said, “This is My body, which is for you; do this in remembrance of Me.”

Otherwise if you bless in the spirit only, how will the one who fills the place of the ungifted say the “Amen” at your giving of thanks, since he does not know what you are saying?

For you are giving thanks well enough, but the other person is not edified.

but thanks be to God, who gives us the victory through our Lord Jesus Christ.