John Calvin on John 12:19

19. Do you not see that you gain nothing? By these words they urge themselves to greater rage; for it may be regarded as a reproach of their slothfulness, as if they had said, that the reason why the people revolted and followed Christ was their own excessive indolence and cowardice. This is the way in which desperate men are wont to talk, when they are making themselves ready for attempting any extreme measures. And if the enemies of God persevere so obstinately in what is evil, we ought to be far more steady in a just undertaking.

John 12:20-26

20. Low there were some Greeks among these who had come up to worship at the feast. 21. These therefore went to Philip, who was of Bethsaida of Galilee, and asked him, saying, Sir, we wish to see Jesus. 22. Philip cometh and telleth, Andrew, and again Andrew and Philip tell Jesus. 23. And Jesus answered them, saying, The hour is come, when the Son of man must be glorified. 24. Verily, verily, I say to you, Unless a grain of wheat, having fallen into the ground, die, it remaineth alone; but if it die, it bringeth forth much fruit. 25. He who loveth his soul shall destroy it; and he who hateth his soul in this world shall keep it to eternal life. 26. If any man serves me, let him follow me; and where I am, there also shall my servant be. And if any man shall serve me, my Father will honor him.