42 But perhaps the word 'creation,' and its employment of Him, disturbs us. Certainly the word 'creation' would disturb us, if birth before the ages and creation for the beginning of the ways of God and for His works were not affirmed of Him. For birth cannot be understood to denote creation, since the birth precedes causation, but the creation takes place through causation. For before the preparation of the heaven and before the commencement of the ages was He established, Who was created for the beginning of the ways of God and for His works. Is it possible that to be created for the beginning of the ways of God and for His works, means the same as to be born before all things? No: one of these ideas relates to time employed in action, but the other bears a sense which has no relation to time.
Source: On the Trinity (New Advent)