3 Let the Jews, however, since they so will, suffer their usual disorder of unbelief, both in these and the like statements. But let us adopt the godly doctrine of our Faith, worshipping one God the Father of the Christ, (for to deprive Him, who grants to all the gift of generation, of the like dignity would be impious): and let us Believe in One God the Father, in order that, before we touch upon our teaching concerning Christ, the faith concerning the Only-begotten may be implanted in the soul of the hearers, without being at all interrupted by the intervening doctrines concerning the Father.
Source: Catechetical Lectures (New Advent)