Matthew 24:40 Then two men will be in the field; one will be taken and one left. 41 Two women will be grinding at the mill; one will be taken and one left. 42 Therefore, stay awake, for you do not know on what day your Lord is coming. 43 But know this, that if the master of the house had known in what part of the night the thief was coming, he would have stayed awake and would not have let his house be broken into. 44 Therefore you also must be ready, for the Son of Man is coming at an hour you do not expect.
Our lesson today begins with the results of the Jesus' return to judge the world, sending unbelievers to the Lake of Fire and restoring believers and the place they live. Upon Jesus return He will raise all believers bodies from the grave and will change all believers bodies to imperishable bodies and all believers will be caught up together to meet the Lord in the air (!Corinthians 15:50-57; 1 Thessalonians 4:13-18 - read these scriptures to understand). Matthew 24:40-41 reveals that the believers and non-believers will be working together in the fields and at the grist mills. When Jesus returns, only the believers will remain with Jesus. The non-believers are left behind to suffer judgment for their sin. The believers' sins were pardoned when they repented of their sins and believed the gospel (Mark 1:15; 1 Corinthians 15:3-4; Romans 10:9). The believers will spend an eternity with Jesus in the new heavens and earth (Revelation 21:1-4).
Jesus had two commands, one for the believers only and one for both believers and non-believers. The first command is stay awake. How do we fulfill that command? Stay awake means to be working at completing the work God has given us to do. In Revelation 3:2, the pastor of the church is told, "Wake up, and strengthen what remains and is about to die, for I have not found your works complete in the sight of my God." Being asleep means we are not working at completing our God-given assignments. Being awake means we are working at completing our God-given assignment (Ephesians 2:10; John 15:16). What are our God-given assignments? One everyone has is, "Make Disciples" (Matthew 28:19). We make disciples by helping people know Jesus and gain eternal life. We make disciples by helping people know His teaching and how to live it by the power of the Holy Spirit (Matthew 28:20; Galatians 5:16).
The second command Jesus has for believers and also for non-believer is, "Be ready (or prepared)." How do we get ready? We get ready as a non-believer by repenting of our sin and believing the gospel. We get ready as a believer by completing the work He has given us to do. Jesus said we would be ready if we knew a thief was going to break into our house and rob us. We know Jesus is coming to judge the world and save His people, those who repented of their sin and believed the gospel. Therefore, we need to be getting ready by repenting of our sins, by believing the gospel, and by working at completing our God given assignments. Are you awake? Are you ready?