Be on your guard against him yourself, because he was violently opposed to our message.
of whom be thou ware also; for he hath greatly withstood our words.
Beware of him yourself, for he opposed and resisted our message very strongly and exceedingly.
of whom do thou also beware; for he greatly withstood our words.
But watch out for him, because he opposes our teaching.
And you should also avoid him; for he has strongly resisted our words.