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

The call to be watchful is echoed throughout Scripture, particularly in Matthew 24:42, where Jesus instructs His followers to 'Watch therefore, for ye know not what hour your Lord doth come.' This watchfulness is a recognition of our human tendency to forget the gravity of eternal matters. In Luke 12:34, Jesus highlights that where our treasure is, our heart will be also, indicating that our affections should be aligned with our anticipated meeting with Him. The diligent preparation and readiness demanded by Jesus are not burdens, but expressions of faith in His grace, as He has prepared us for this event through His sacrificial love.