Justin Martyr, The First Apology

What sober-minded man, then, will not acknowledge that we are not atheists, worshipping as we do the Maker of this universe, and declaring, as we have been taught, that He has no need of streams of blood and libations and incense; whom we praise to the utmost of our power by the exercise of prayer and thanksgiving for all things wherewith we are supplied, as we have been taught that the only honour that is worthy of Him is not to consume by fire what He has brought into being for our sustenance, but to use it for ourselves and those who need, and with gratitude to Him to offer thanks by invocations and hymns15 πομπὰς καὶ ὕμνους. “Grabe, and it should seem correctly, understands πομπὰς to be solemn prayers. … He also remarks, that the ὕμνοι were either psalms of David, or some of those psalms and songs made by the primitive Christians, which are mentioned in Eusebius, H. E., v. 28.” —Trollope. for our creation, and for all the means of health, and for the various qualities of the different kinds of things, and for the changes of the seasons; and to present before Him petitions for our existing again in incorruption through faith in Him. Our teacher of these things is Jesus Christ, who also was born for this purpose, and was crucified under Pontius Pilate, procurator of Judæa, in the times of Tiberius Cæsar; and that we reasonably worship Him, having learned that He is the Son of the true God Himself, and holding Him in the second place, and the prophetic Spirit in the third, we will prove. For they proclaim our madness to consist in this, that we give to a crucified man a place second to the unchangeable and eternal God, the Creator of all; for they do not discern the mystery that is herein, to which, as we make it plain to you, we pray you to give heed.

[13] Ἄθεοι μὲν οὖν ὡς οὔκ ἐσμεν, τὸν δημιουργὸν τοῦδε τοῦ παντὸς σεβόμενοι, ἀνενδεῆ αἱμάτων καὶ σπονδῶν καὶ θυμιαμάτων, ὡς ἐδιδάχθημεν, λέγοντες, λόγῳ εὐχῆς καὶ εὐχαριστίας ἐφ' οἷς προσφερόμεθα πᾶσιν, ὅση δύναμις, αἰνοῦντες, μόνην ἀξίαν αὐτοῦ τιμὴν ταύτην παραλαβόντες, τὸ τὰ ὑπ' ἐκείνου εἰς διατροφὴν γενόμενα οὐ πυρὶ δαπανᾶν, ἀλλ' ἑαυτοῖς καὶ τοῖς δεομένοις προσφέρειν, ἐκείνῳ δὲ εὐχαρίστους ὄντας διὰ λόγου πομπὰς καὶ ὕμνους πέμπειν ὑπέρ τε τοῦ γεγονέναι καὶ τῶν εἰς εὐρωστίαν πόρων πάντων, ποιοτήτων μὲν γενῶν καὶ μεταβολῶν ὡρῶν, καὶ τοῦ πάλιν ἐν ἀφθαρσίᾳ γενέσθαι διὰ πίστιν τὴν ἐν αὐτῷ αἰτήσεις πέμποντες, _τίς σωφρονῶν οὐχ ὁμολογήσει; τὸν διδάσκαλόν τε τούτων γενόμενον ἡμῖν καὶ εἰς τοῦτο γεννηθέντα Ἰησοῦν Χριστόν, τὸν σταυρωθέντα ἐπὶ Ποντίου Πιλάτου, τοῦ γενομένου ἐν Ἰουδαίᾳ ἐπὶ χρόνοις Τιβερίου Καίσαρος ἐπιτρόπου, υἱὸν αὐτοῦ τοῦ ὄντως θεοῦ μαθόντες καὶ ἐν δευτέρᾳ χώρᾳ ἔχοντες, πνεῦμά τε προφητικὸν ἐν τρίτῃ τάξει ὅτι μετὰ λόγου τιμῶμεν ἀποδείξομεν. ἐνταῦθα γὰρ μανίαν ἡμῶν καταφαίνονται, δευτέραν χώραν μετὰ τὸν ἄτρεπτον καὶ ἀεὶ ὄντα θεὸν καὶ γεννήτορα τῶν ἁπάντων ἀνθρώπῳ σταυρωθέντι διδόναι ἡμᾶς λέγοντες, ἀγνοοῦντες τὸ ἐν τούτῳ μυστήριον, ᾧ προσέχειν ὑμᾶς ἐξηγουμένων ἡμῶν προτρεπόμεθα.