Socrates and Euthyphro?

1.what is the problem of piety between Socrates and Euthyphro? "fear of the gods and being afraid"(cite sources)

The problem of piety involves whether what is commanded by God is commanded by Him because it is good from a moral standpoint, or whether it is good from a moral standpoint because God commands it. http://www.str.org/articles/euthyphro-s-dilemma.Uw66P4Xvbg0