Answer: The one who sows to please the Spirit will reap eternal life, (verse 8).
MORE INFORMATION AND/OR OTHER SCRIPTURE REFERENCES:
Romans 6:22-23: "But now that you have been set free from sin and have become slaves to God, the benefit you reap leads to holiness, and the result is eternal life. For the wages of sin is death, but the gift of God is eternal life in Christ Jesus our Lord."
Matthew 25:46: [Jesus said,] "Then they will go away to eternal punishment, but the righteous to eternal life."
John 4:14: [Jesus said,] "but whoever drinks the water I give him will never thirst. Indeed, the water I give him will become in him a spring of water welling up to eternal life."
John 4:36: [Jesus said,] "Even now the reaper draws his wages, even now he harvests the crop for eternal life, so that the sower and the reaper may be glad together."
Those who sow to please the Spirit keep themselves in the love of God:
Jude 1:21: "Keep yourselves in God's love as you wait for the mercy of our Lord Jesus Christ to bring you to eternal life."