Theodoret of Cyrus: Belief or Unbelief Does Not Affect God

If we are unfaithful, he remains faithful: he cannot deny himself (v.13): those with faith do not render him God, nor do those without faith remove the divine nature from him; rather, whether we believe or not, he is God. So it is we the believers who reap the benefit.

- Theodoret of Cyrus (around A.D. 393 to around A.D. 457), Commentary on 2 Timothy, Chapter 2, in Theodoret of Cyrus, Commentary on the Letters of St. Paul, Volume 2, p. 241 (2001), Robert C. Hill translator.