Titus 1:2

Before the world began— Προ χρονων αιωνιων, before the secular ages; or before the giving of the law of Moses. God had promised the gospel, in an obscure manner, to the patriarchs before Abraham; but to him it was promised more explicitly. Now that promise to Abraham, was before the secular times—the jubilees under the law, and, consequently, before the distinction of the world into Jews and Gentiles. But what the God, who cannot lie or break his word, had promised so long before to Abraham, the law of Moses, which intervened, could not disannul. See Romans 16:25.Galatians 3:17.