What does the Bible say about being prepared for Christ's return?

In Matthew 25:1-13, Jesus tells the parable of ten virgins, highlighting the significance of being prepared for His return. Five virgins were wise and brought oil for their lamps, while five were foolish and did not. When the bridegroom came, only those who were prepared entered the wedding feast, while the others were rejected. This parable serves as a reminder that mere profession of faith is not enough; true spiritual readiness, symbolized by the oil, is essential for entering the Kingdom of Heaven and enjoying communion with Christ.