Ephesians 3:15 - Coke's Commentary on the Holy Bible

Of whom the whole family— As Christ is the last person mentioned before the words, of whom, it seems reasonable to interpret this clause as referring to him; though others rather choose to understand it of the Father, who isthe principal subject of the foregoing sentence. The word heaven may be here taken in a great latitude, for all the regions of happinessof the invisible world. The Jewish writers call heaven, the upper, and earth, the lower family of God.