The Search for Right and Wrong

Ecclesiastes 6:12 & 12:13

6:12 For who knows what is good for a person in life, during the few and meaningless days they pass through like a shadow? Who can tell them what will happen under the sun after they are gone?

12:13 Now all has been heard;
here is the conclusion of the matter:
Fear God and keep his commandments,
for this is the duty of all mankind.