“And now I know that none of you, among whom I have gone about proclaiming the kingdom, will ever see my face again. Therefore I declare to you this day that I am not responsible for the blood of any of you, for I did not shrink from declaring to you the whole purpose of God. Keep watch over yourselves and over all the flock, of which the Holy Spirit has made you overseers, to shepherd the church of God that he obtained with the blood of his own Son. I know that after I have gone, savage wolves will come in among you, not sparing the flock. Some even from your own group will come distorting the truth in order to entice the disciples to follow them. Therefore be alert, remembering that for three years I did not cease night or day to warn everyone with tears. And now I commend you to God and to the message of his grace, a message that is able to build you up and to give you the inheritance among all who are sanctified. I coveted no one’s silver or gold or clothing. You know for yourselves that I worked with my own hands to support myself and my companions. In all this I have given you an example that by such work we must support the weak, remembering the words of the Lord Jesus, for he himself said, ‘It is more blessed to give than to receive.’” When he had finished speaking, he knelt down with them all and prayed. There was much weeping among them all; they embraced Paul and kissed him, grieving especially because of what he had said, that they would not see him again. Then they brought him to the ship. (Acts 20:25-38, NRSV)
I know that after I have gone, savage wolves will come in among you, not sparing the flock. Some even from your own group will come distorting the truth in order to entice the disciples to follow them.
Even from amongst the sheep, wolves will rise.
We must be alert and in tune with Jesus. For we will be led astray if we are not alert and always on guard.
This does not mean we pull out of the world and isolate ourselves, because God through Jesus has called us to be in the world. To be His hands and feet to serve the world and show them His love.