23 But Jesus answered them, saying, “The hour has come that the Son of Man should be glorified.
24 Most assuredly, I say to you, unless a grain of wheat falls into the ground and dies, it remains alone; but if it dies, it produces much grain.
25 He who loves his life will lose it, and he who hates his life in this world will keep it for eternal life.
26 If anyone serves Me, let him follow Me; and where I am, there My servant will be also. If anyone serves Me, him My Father will honor.
There is no indication that Jesus met with the Greeks.
Previously (John 2:5; 7:30), Jesus had said that His hour had no come. Now it had (v. 23).
glorified (v. 23) — His death, which fulfilled His purpose (John 13:30-31).
When a grain of wheat dies (v. 24), it produces other grains. The life in grain is passed through death. So Christ's life is passed to ous through His death.
Verse 25 — Matthew 10:39; 16:25; Mark 8:35; Luke 9:24; 17:33. See also Philippians 3:7-10; Colossians 3:1-4. By giving up themselves and serving Christ, they may do without on earth but would be honored by God.
The coming of these Greeks indicated the time when the strangers from the commonwealth of Israel would seek Him as Savior, when the middle wall of partition would be broken down, and the salvation of God would go far hence to the Gentiles, so that the other sheep (John 10) might be gathered in, to form with the sheep from the Jewish fold, the one flock. But all this could not be accomplished by His earthly life; it necessitated His death. He had to be lifted up first on the cross before all could be drawn to Him. Through death alone could come the glory, the glory He received, and the glory of salvation for a lost world. The words which follow make this clear. "Verily, verily, I say unto you, Except the corn of wheat fall into the groudn and die, it abideth alone; but if it die, it bringeth forth much fruit." — The Gospel of John, by Arno Clemens Gaebelein, page 227-228.