Justin Martyr — First Apology 6
Hence are we called atheists. And we confess that we are atheists, so far as gods of this sort are concerned, but not with respect to the most true God, the Father of righteousness and temperance and the other virtues, who is free from all impurity. But both Him, and the Son (who came forth from Him and taught us these things, and the host of the other good angels who follow and are made like to Him), and the prophetic Spirit, we worship and adore, knowing them in reason and truth, and declaring without grudging to every one who wishes to learn, as we have been taught.
Greek
Ἔνθεν δὲ καὶ ἄθεοι κεκλήμεθα· καὶ ὁμολογοῦμεν τῶν τοιούτων νομιζομένων θεῶν ἄθεοι εἶναι, ἀλλ᾿ οὐχὶ τοῦ ἀληθεστάτου καὶ πατρὸς δικαιοσύνης καὶ σωφροσύνης καὶ τῶν ἄλλων ἀρετῶν ἀνεπιμίκτου τε κακίας θεοῦ· ἀλλ᾿ ἐκεῖνόν τε καὶ παρ᾿ αὐτοῦ υἱὸν ἐλθόντα καὶ διδάξαντα ἡμᾶς ταῦτα, καὶ τὸν τῶν ἄλλων ἑπομένων καὶ ἐξομοιουμένων ἀγαθῶν ἀγγέλων στρατόν, πνεῦμά τε τὸ προφητικὸν σεβόμεθα καὶ προσκυνοῦμεν, λόγῳ καὶ ἀληθείᾳ τιμῶντες, καὶ παντὶ βουλομένῳ μαθεῖν, ὡς ἐδιδάχθημεν, ἀφθόνως παραδιδόντες.