“You may think that everything you do is right, but remember that the LORD judges your motives. Do what is right and fair; that pleases the LORD more than bringing him sacrifices.

.. The LORD hates it when wicked people offer him sacrifices, especially if they do it from evil motives.”

(Proverbs 21.2,3,27 GNB)

Offering to God ought to come from sincere motives - out of gratitude and desire to serve. And I ought to give my offering intentionally and to keep my heart and mind right with God.