The further conclusion is evident that God is eternal. For everything that begins to be or that ceases to be, is affected in this way through motion or change. But we have just shown that God is absolutely immobile. Consequently He is eternal.
St. Thomas Aquinas. (1265-1274). Compendium Theologiae: Eternity of God, trans. by Cyril Vollert. St. Louis & London: B. Herder Book Co., 1947
All scripture is given by inspiration of God and is profitable for doctrine, reproof, correction, and instruction in righteousness (2 Timothy 3:16).