What does the Bible say about being watchful for the Lord's return?

The Scripture repeatedly emphasizes the importance of being watchful for the Lord's return, as seen in Matthew 24:42, where believers are commanded to be vigilant, for they do not know the hour He will come. Jesus draws a parallel with the days of Noah, indicating that just as people were unaware of the impending flood, so too will many be unprepared for His return. This call to watchfulness is not just about anticipating His coming but also about living in a way that reflects our faith in Christ, trusting in His righteousness and grace. 1 Thessalonians 5:6 further supports this exhortation, encouraging believers to be alert and sober-minded.