That in the dispensation of the fullness 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:
All Commentaries on Ephesians 1:10 Go To Ephesians 1
John Chrysostom
AD 407
The “fullness of time” was the Son’s appearing. When, then, God had done all through angels, through prophets and through the law, yet nothing had improved, there was a danger that humanity had come into being for nothing. It was not going merely nowhere but to the bad. All were perishing together, just like in the days of the flood but more so. Just then he offered this gracious dispensation—to ensure that creation should not have come into being for nothing or in vain. The “fullness of time” is that divine wisdom by which, at the moment when all were most likely to perish, they were saved. .