Go to now, ye rich men, weep and howl for your miseries that shall come upon you.
Go to now - Come now: to call solemn attention.
Ye rich - who neglect the true enjoyment of riches, which consists in doing good. James intends this address to rich Jewish unbelievers, not so much for themselves as for the saints, that they may bear with patience the violence of the rich (James 5:7), knowing that God will speedily avenge them.
Miseries that shall come, х eperchomenais (G1904)] - 'that are coming upon you' unexpectedly and swiftly; namely (James 5:7) primarily, at the destruction of Jerusalem; finally, at the Lord's visible coming to judge the world.