How do we know that eternity is significant for Christians?

The doctrine of eternity is significant for Christians as it emphasizes the importance of living in light of God's eternal purpose and our ultimate destiny. Paul reminds us that 'the fashion of this world passeth away' (1 Corinthians 7:31), meaning our earthly pursuits should be seen in the context of eternity. Additionally, the Bible teaches that we have an eternal hope through Jesus Christ, who has freed us from sin and death. The reality of eternity propels us towards holiness, service to God, and the urgency of sharing the Gospel. Ultimately, our view of eternity shapes how we live today and influences what we value most in life.