18 "If the world hates you, remember that it hated me first. 19 The world would love you as one of its own if you belonged to it, but you are no longer part of the world. I chose you to come out of the world, so it hates you. 20 Do you remember what I told you? 'A slave is not greater than the master.' Since they persecuted me, naturally they will persecute you. And if they had listened to me, they would listen to you. 21 They will do all this to you because of me, for they have rejected the one who sent me. 22 They would not be guilty if I had not come and spoken to them. But now they have no excuse for their sin. 23 Anyone who hates me also hates my Father. 24 If I hadn't done such miraculous signs among them that no one else could do, they would not be guilty. But as it is, they have seen everything I did, yet they still hate me and my Father. 25 This fulfills what is written in their Scriptures : 'They hated me without cause.'
26 "But I will send you the Advocate -the Spirit of truth. He will come to you from the Father and will testify all about me. 27 And you must also testify about me because you have been with me from the beginning of my ministry.
Matthew Henry's Commentary on John 15:18-27
Commentary on John 15:18-25
(Read John 15:18-25)
How little do many persons think, that in opposing the doctrine of Christ as our Prophet, Priest, and King, they prove themselves ignorant of the one living and true God, whom they profess to worship! The name into which Christ's disciples were baptized, is that which they will live and die by. It is a comfort to the greatest sufferers, if they suffer for Christ's name's sake. The world's ignorance is the true cause of its hatred to the disciples of Jesus. The clearer and fuller the discoveries of the grace and truth of Christ, the greater is our sin if we do not love him and believe in him.
Commentary on John 15:26-27
(Read John 15:26-27)
The blessed Spirit will maintain the cause of Christ in the world, notwithstanding the opposition it meets with. Believers taught and encouraged by his influences, would bear testimony to Christ and his salvation.