KJV:
Woe to thee that spoilest, and thou wast not spoiled; and dealest treacherously, and they dealt not treacherously with thee! when thou shalt cease to spoil, thou shalt be spoiled; and when thou shalt make an end to deal treacherously, they shall deal treacherously with thee.
NASB:
Woe to you, O destroyer, While you were not destroyed; And he who is treacherous, while others did not deal treacherously with him. As soon as you finish destroying, you will be destroyed; As soon as you cease to deal treacherously, others will deal treacherously with you.