“One God and Father of all who is over all and through all and in all” (Eph. 4:6).
Paul may be echoing the language of Malachi who asks, “Do we not all have one father? Has not one God created us?” (Mal. 2:10a). All of mankind are created by God, in His image and thus Paul can speak bowing his knees before the Father “from whom every family in heaven and on earth derives its name” (Eph. 3:15). But now through Christ those created in His image can be brought back into relationship as sons (Eph. 1:5). Here again, Paul’s concern is to underline the unity of the church. We all have the same Father.
God is over all in the sense that He alone is sovereign and thus transcendent over all. He is pervasive through all, everything speaks of Him, and He is immanent in all.
It is possible that Paul is quoting from and amplifying an early confession of faith. The reference to “one Spirit,” “one Lord,” and “one God and Father” should demonstrate how central is the doctrine of the triune God was and is to the church’s faith. Don’t be misled by the misguided argument that the doctrine of the “Trinity” is not taught simply because the word itself does not occur in Scripture. Its teaching is consistent and plain throughout Scripture.
Prayer: Thank You Father, for the permission to address You as “our Father.” Amen