8 So much then be said concerning the faith which was published; to which all of us assented, not without inquiry, but according to the specified senses, mentioned before the most religious Emperor himself, and justified by the forementioned considerations. And as to the anathematism published by them at the end of the Faith, it did not pain us, because it forbade to use words not in Scripture, from which almost all the confusion and disorder of the Church have come. Since then no divinely inspired Scripture has used the phrases, “out of nothing,” and “once He was not,” and the rest which follow, there appeared no ground for using or teaching them; to which also we assented as a good decision, since it had not been our custom hitherto to use these terms.
Source: Letter on the Council of Nicaea (New Advent)