receive you unto myself
This promise of a second advent of Christ is to be distinguished from His return in glory to the earth; it is the first intimation in Scripture of "the day of Christ".
( See Scofield) - (1 Corinthians 1:8).
Here He comes for His saints (1 Thessalonians 4:14-17); there (Matthew 24:29); (Matthew 24:30), He come to judge the nations, etc.