Eph 3:8-12
Reading from the Memorial of Saint Ambrose
To me, though I am the very least of all the saints, this grace was given, to preach to the Gentiles the unsearchable riches of Christ, and to make all men see what is the plan of the mystery hidden for ages in[a] God who created all things; that through the church the manifold wisdom of God might now be made known to the principalities and powers in the heavenly places. This was according to the eternal purpose which he has realized in Christ Jesus our Lord, in whom we have boldness and confidence of access through our faith in him.