Job 4:8 Even as I have seen, they that plow iniquity, and sow wickedness, reap the same.
Eliphaz opens the discussion about Job’s plight. He says Job has offered wisdom and strengthened the weak, but now trouble has come upon him. Then he implies that Job’s troubles have come about because of his sin. This is the conventional wisdom of the day: “You reap what you sow.” Retributive Justice punishes sin with troubles in this life. See Galatians 6:7-8, “Whatever one sows, that will he also reap. For the one who sows to his own flesh will from the flesh reap corruption, but the one who sows to the Spirit will from the Spirit reap eternal life.”
This general principle, while true, doesn’t tell the whole story or apply in Job’s case. God’s ways are hidden from us, as they are from Job and Eliphaz, but His mysterious ways still have a good purpose and result. Nothing good comes from sin, but all good things come through the Gospel of Christ. We do reap what we sow, but the Lord has a greater purpose in mind for us through Jesus Christ. So we pay attention to God and His Word and His Spirit, we trust Him even if we do not understand, and we sow to the Spirit.