He took a body that could feel pain
After this he says: “If he had resolved on these things and was punished in obedience to the Father, it is clear that, since he was a god and willed it, what was done to him in accordance with his own will was neither painful nor grievous.” He did not see that he was contradicting himself in the same breath. For if he granted that Jesus was punished, since he had resolved on these things and in obedience to the Father gave himself up, it is clear that he was punished, and it was not possible that what the punishers inflicted should not be painful; for pain does not depend on the will. But if, because he willed it, what was inflicted was neither painful nor grievous, how did he grant that “he was punished”?
He did not see that, once Jesus had taken up the body that comes through birth, he took it up as a body capable of pains and of the grievous things that befall those who are in bodies, provided we do not take “grievous” to mean something that depends on the will. So, just as he willingly took up a body not altogether different in nature from human flesh, so together with the body he also took up what is painful and grievous in it. It was not in his power not to suffer these things, since it lay with those who were dealing with him to inflict grievous and painful things upon him.
We have already answered above that if he had willed not to come into the hands of men, he would not have come. But he came, because he willed it, for the reason already given, that his dying for men would benefit the whole universe.
Greek
Μετὰ ταῦτα λέγει ὅτι. εἰ δέδοκτο αὐτῷ ταῦτα. καὶ τῷ πατρὶ πειθόμενος ἐκολάζετο, δῆλον ὅτι θεῷ γε ὄντι καὶ βουλομένῳ οὔτ᾿ ἀλγεινὰ οὔτ᾿ ἀνιαρὰ ἦν τὰ κατὰ γνώμην δρώμενα. καὶ οὐχ ἑώρακέ γε αὐτὸς ἑαυτῷ παρὰ πόδας ἐναντία εἰπών. εἰ γὰρ ἔδωκεν ὅτι ἐκολάζετο. ἐπεὶ δέδοκτο αὐτῷ ταῦτα. καὶ τῷ πατρὶ πειθόμενος ἐμπαρεῖχεν ἑαυτὸν, δῆλον ὅτι ἐκολάζετο, καὶ οὐχ οἷόν τε ἦν μὴ εἶναι ἀλγεινὰ τὰ προσαγόμενα ὑπὸ τῶν κολαστῶν· ἀπροαίρετον γὰρ ὁ πόνος. εἰ δὲ βουλομένῳ οὔτε ἀλγεινὰ οὔτε ἀνιαρὰ ἦν τὰ προσαγόμενα, πῶς ἔδωκε τὸ ἐκολάζετο; οὐχ ἑώρακε δὲ ὅτι ἅπαξ ἀναλαβὼν τὸ διὰ γενέσεως σῶμα ἀνείληφεν αὐτὸ καὶ πόνων δεκτικὸν τυγχάνον καὶ τῶν τοῖς ἐν σώμασι συμβαινόντων ἀνιαρῶν, εἰ τοῦ ἀνιαροῦ μὴ ὡς προαιρετικοῦ ἀκούοιμεν. ὥσπερ οὖν βουληθεὶς ἀνείληφε σῶμα οὐ πάντῃ ἄλλης φύσεως παρὰ τὴν ἀνθρωπίνην σάρκα. οὕτως συνανείληφε τῷ σώματι καὶ τὰ ἀλγεινὰ αὐτοῦ καὶ τὰ ἀνιαρὰ. ὧν πρὸς τὸ μὴ παθεῖν κύριος οὐκ ἦν, ἐπὶ τοῖς διατιθεῖσιν ὄντος προσάγειν αὐτῷ τὰ ἀνιαρὰ καὶ τὰ ἀλγεινά. προαπελογησάμεθα δὲ ἐν τοῖς ἀνωτέρω ὅτι βουληθεὶς μὴ ἥκειν εἰς χεῖρας ἀνθρώπων οὐκ ἐληλύθει ἄν. ἦλθε δὲ. ἐπεὶ ἐβούλετο. διὰ τὸ προαποδεδομένον ἐκ τοῦ αὐτὸν ὑπὲρ ἀνθρώπων ἀποθανεῖν τῷ παντὶ χρήσιμον.