One of the most interesting questions in philosophy that I like is Euthyphro dilemma. In short, the dilemma is a question about morality, “Is the pious loved by the gods because it is pious, or is it pious because it is loved by the gods?”
If we think that an act is pious because gods love it, then it somehow makes gods are so arbitrary and it also elucidates our dependency to gods. On the other hand, if something is pious because it is pious in itself, then why bother having gods? We should be able to reach the knowledge to be good in this particular case without the presence of gods. So the big question is: do we really need gods to be good?
Regardless of what people have in mind, I really do not like to dictate which one is correct. Many religious adherents may still think that the presence of gods is indeed necessary even though the act is already pious in itself. They can argue that only by the grace of gods could human beings conceive the idea of what is really good for them. However, this begs a question: why human beings are not able to grasp the idea of the good by themselves? This can still be answered by saying that it is due to our imperfection -and probably related it back to original sin- resulting in our incapability to have a perfect and clear idea about what is good. That is why we still need gods to help us with this.
However, this argument could still be then objected unfortunately. If gods really help human beings to conceive what is good, how can human beings conceive an act solely done by gods which they cannot think that the act is good, for instance a destruction or an asking to kill innocent people? Why sometimes in any story of a bible, there is a situation where the idea of the good seems to be contradictory to what human beings can perceive? Again, such a question can be easily answered by saying that gods may have a grand plan that we do not know anything at all. Or we might probably do not know, at the time being, what is good about such an act. Later time, we should be able to know and conceive the good behind what currently seems to be contradictory with what is good.
But again, this answer does not seem to help at all. If we really have to rely on predicting the aftermath of the event, it seems to be endless for us. We might probably run our of time to decide what is good for us. Also, there is no way human beings can control the effects of the that they have done. To some extent, they might be able to do it but how about the unexpected outcome? If gods are really perfect, for sure they have already known what the outcome would be including the unexpected one. This is probably the main reason why human beings are sometimes not able to understand gods’ act. But how about human beings? We tend to make everything does make sense for ourselves and others.
So back again to the above question: do human beings need gods to be good? This is still to be an open-ended question but personally speaking, I am at some point sure that there must be a moral fact and knowledge that should lead us to be good regardless of the gods’ existence.