'Good will' in the Bible

The husband must fulfill his [marital] duty to his wife [with good will and kindness], and likewise the wife to her husband.

Now about food sacrificed to idols, we know that we all have knowledge [concerning this]. Knowledge [alone] makes [people self-righteously] arrogant, but love [that unselfishly seeks the best for others] builds up and encourages others to grow [in wisdom].