'Give Thanks' in the Bible

If I give thanks and thus partake of food, why am I to be blamed for that for which I give thanks?

What is my conclusion then? I will certainly pray with my spirit, but I will pray with my mind in action too. I will certainly sing with my spirit, but I will sing with my mind in action too. For if you give thanks with your spirit only,

You are, indeed, doing right to give thanks, but your neighbor is not built up.