One God and Father of all, who is above all, and through all, and in you all.
Above, х epi (G1909)] - 'over all' (Romans 9:5). The 'one God over all' (in His sovereignty and His grace) is the crowning apex of unity (Ephesians 2:19, end). 'Over, through, in' express God's threefold relation to his creatures.
Through all - by the mediation of Christ, who 'filleth all things' (Ephesians 1:22-23; Ephesians 2:20-21; Ephesians 5:10), and is "a propitiation" for all men (1 John 2:2).
In you all - by His Spirit. 'Aleph (') A B C, Coptic, omit "you." D G f g, Vulgate, both Syriac versions, read 'in us all.' The pronoun must be understood (either from the "ye," Ephesians 4:4, or from the "us," Ephesians 4:7); for Scripture proves that the Spirit is not 'in all' men, but only in believers (Romans 8:9; Romans 8:14). God is "Father" both by generation (as Creator) and regeneration (Ephesians 2:10; James 1:17-18; 1 John 5:1).