Enemies is one possible interpretation of the greek word echthros, another would be opposers, hostiles, those hating (god in this case), but Paul used enemy to make it clear that when we oppose and go agaisnt God, we shoudl veiw what we are doing as being enemies of God.
And wraith can also be read as anger, judgment, indignation and an expression of a punishment, but wraaith under the context of what Paul was trying to express is just fine.
Those that go against God will face his anger, but one should realise that going against God meant, it mena going against all that God was and for Paul that was hope, faith, love, compassion and more.