A few verses earlier our Lord was warning us not to judge lest we be judged. But here He is telling us to discern those among us who are at heart so very different from us they are ravenous wolves.
A lesson we are taught over and over again is the first person we should always examine is ourselves. Could it possibly be that I am a ravenous wolf who feeds on sheep?
A wolf needs to consume other creatures in order to sustain himself, in order to survive. A sheep, on the other hand, is fed by the Shepherd.
Where do I find my sustenance? Is it from the applause of others? Is it by being the most powerful person, the one who is more important than all the rest? Is it by putting others in their place because I am the only one spiritual enough to decide what is right and true?
Or am I truly one of the little flock, who finds his worth and his joy in the Lord Jesus who laid down His life for the sheep?