Justin Martyr, Dialogue with Trypho 124
When I saw how disturbed they were at my claim that we too are children of God, I anticipated their unasked question and said: "Listen, men, to how the Holy Spirit speaks concerning this people: that all are sons of the Most High, and that He Himself, the Christ, will be present in their synagogue, making judgment from every kind of humanity."
These words were spoken through David, as you interpret them: "God stands in the divine council; in the midst of the gods He judges. How long will you judge unjustly and show partiality to the wicked? Give justice to the weak and the fatherless; maintain the right of the afflicted and the destitute. Rescue the weak and the needy; deliver them from the hand of the wicked." They have neither knowledge nor understanding; they walk about in darkness; all the foundations of the earth are shaken. "I said: You are gods, sons of the Most High, all of you; nevertheless, like men you shall die, and fall like any prince. Arise, O God, judge the earth; for You shall inherit all the nations" (Psalm 81).
In the interpretation of the Seventy it is rendered: "Behold, you die like men, and fall like one of the princes" — so that He might show also the disobedience of men, I mean of Adam and Eve, and the fall of one of the princes, that is, of the serpent so called, who fell a great fall because he deceived Eve.
But since my speech is not now concerned with this, but with showing you that the Holy Spirit reproaches men — who, if they keep His commandments, are similarly impassible and immortal as God, having become and been deemed worthy by Him to be called His sons — and that these, likening themselves to Adam and Eve, work death for themselves, let the interpretation of the psalm be as you wish; and thus it has been shown that they are deemed worthy to become gods, and all are able to become sons of the Most High, and they will be judged and condemned by themselves, just as Adam and Eve were.
That the Christ is also called God has been shown in many ways.
Greek
Καὶ ἐπειδὴ εἶδον αὐτοὺς συνταραχθέντας ἐπὶ τῷ εἰπεῖν με καὶ θεοῦ τέκνα εἶναι ἡμᾶς, προλαβὼν τὸ ἀνερωτηθῆναι εἶπον· Ἀκούσατε, ὦ ἄνδρες, πῶς τὸ ἅγιον πνεῦμα λέγει περὶ τοῦ λαοῦ τούτου, ὅτι υἱοὶ ὑψίστου πάντες εἰσὶ καὶ ἐν τῇ συναγωγῇ αὐτῶν παρέσται αὐτὸς οὗτος ὁ Χριστός, τὴν κρίσιν ἀπὸ παντὸς γένους ἀνθρώπων ποιούμενος. Εἴρηνται δὲ οἱ λόγοι διὰ Δαυΐδ, ὡς μὲν ὑμεῖς ἐξηγεῖσθε, οὕτως· Ὁ θεὸς ἔστη ἐν συναγωγῇ θεῶν, ἐν μέσῳ δὲ θεοὺς διακρίνει. Ἕως πότε κρίνετε ἀδικίαν καὶ πρόσωπα ἁμαρτωλῶν λαμβάνετε; Κρίνατε ὀρφανῷ καὶ πτωχῷ καὶ ταπεινὸν καὶ πένητα δικαιώσατε. Ἐξέλεσθε πένητα, καὶ πτωχὸν ἐκ χειρὸς ἁμαρτωλοῦ ῥύσασθε. Οὐκ ἔγνωσαν οὐδὲ συνῆκαν, ἐν σκότει διαπορεύονται· σαλευθήσονται πάντα τὰ θεμέλια τῆς γῆς. Ἐγὼ εἶπα· Θεοί ἐστε καὶ υἱοὶ ὑψίστου πάντες· ὑμεῖς δὲ ὡς ἄνθρωπος ἀποθνήσκετε, καὶ ὡς εἶς τῶν ἀρχόντων πίπτετε. Ἀνάστα ὁ θεός, κρῖνον τὴν γῆν, ὅτι σὺ κατακληρονομήσεις ἐν πᾶσι τοῖς ἔθνεσιν [Ps., LXXXI]. Ἐν δὲ τῇ τῶν ἑβδομήκοντα ἐξηγήσει εἴρηται· Ἰδοὺ δὴ ὡς ἄνθρωποι ἀποθνήσκετε, καὶ ὡς εἷς τῶν ἀρχόντων πίπτετε· ἵνα δηλώσῃ καὶ τὴν παρακοὴν τῶν ἀνθρώπων, τοῦ Ἀδὰμ λέγω καὶ τῆς Εὔας, καὶ τὴν πτῶσιν τοῦ ἑνὸς τῶν ἀρχόντων, τουτέστι τοῦ κεκλημένου ἐκείνου ὄφεως, πεσόντος πτῶσιν μεγάλην διὰ τὸ ἀποπλανῆσαι τὴν Εὔαν. Ἀλλ᾿ ἐπειδὴ οὐ πρὸς τοῦτό μοι νῦν ὁ λόγος λέλεκται, ἀλλὰ πρὸς τὸ ἀποδεῖξαι ὑμῖν ὅτι τὸ πνεῦμα τὸ ἅγιον ὀνειδίζει τοὺς ἀνθρώπους, τοὺς καὶ θεῷ ὁμοίως ἀπαθεῖς καὶ ἀθανάτους, ἐὰν φυλάξωσι τὰ προστάγματα αὐτοῦ, γεγενημένους, καὶ κατηξιωμένους ὑπ᾿ αὐτοῦ υἱοὺς αὐτοῦ καλεῖσθαι, καὶ οὗτοι ὁμοίως τῷ Ἀδὰμ καὶ τῇ Εὔᾳ ἐξομοιούμενοι θάνατον ἑαυτοῖς ἐργάζονται, ἐχέτω καὶ ἡ ἑρμηνεία τοῦ ψαλμοῦ ὡς βούλεσθε· καὶ οὕτως ἀποδέδεικται ὅτι θεοὶ κατηξίωνται γενέσθαι, καὶ υἱοὶ ὑψίστου πάντες δύνασθαι γενέσθαι κατηξίωνται, καὶ παρ᾿ ἑαυτοὺς καὶ κρίνεσθαι καὶ καταδικάζεσθαι μέλλουσιν, ὡς καὶ Ἀδὰμ καὶ Εὔα. Ὅτι δὲ καὶ θεὸν τὸν Χριστὸν καλεῖ, ἐν πολλοῖς ἀποδέδεικται.