Tertullian

Thus the very retribution which overtook both Jews and Greeks proves that God is both a jealous God and a Judge, inasmuch as He infatuated the world's wisdom by an angry and a judicial retribution. Since, then, the causes are in the hands of Him who gave us the Scriptures which we use, it follows that the apostle, when treating of the Creator, (as Him whom both Jew and Gentile as yet have) not known, means undoubtedly to teach us, that the God who is to become known (in Christ) is the Creator.