What does the dispensation of the fulness of time in Ephesians 1 mean?

The dispensation of the fulness of time in Ephesians 1 refers to the thousand-year reign of Christ. In it, all things in Christ are gathered together in one—both the heavenly things and the things on earth—so that everything is united in Him.

Les explains that Ephesians 1 is where Paul writes about the dispensation of the fulness of time. He says this refers to the thousand-year reign of Christ. In that dispensation, He will gather together in one all things in Christ, both the heavenly things and the things on earth. This shows the coming unification of all things in Christ during that reign.

Ephesians 1:10

That in the dispensation of the fulness of times he might gather together in one all things in Christ, both which are in heaven, and which are on earth; even in him:

What happens in the dispensation of the fulness of time when God gathers all things in Christ?

In the dispensation of the fulness of time, which refers to Christ's thousand-year reign, God gathers together in one all things in Christ. This includes both the heavenly things and the things on earth, unifying them under Christ according to Paul's writing in Ephesians 1.