" The apostle, saying that all beings [τὰ πάντα] will submit to the Son, indicated the obedience given out of a free choice [ἐξ αὐθεκουσίου προαιρέσεως], and the glory […] that all beings [τὰ πάντα] will render to him qua Savior and king of all together [τῶν ὅλων]. In the same way, also his own submission to the Father probably does not indicate anything else than […] the voluntary [αὐθεκούσιον] obedience which he himself (viz., in his humanity) will render to God the Father, once he has rendered all [τοὺς πάντας] worthy of the divinity of the Father [ἀξίους τῆς πατρικῆς θεότητος].

[…] In case they are unworthy [οὐκ ἄξιοι] of it [viz., the Father's divinity], Christ, qua common Savior of absolutely all [κοινὸς ἁπάντων Σωτήρ], will take on his reign, a rectifying and therapeutic reign, which will rectify those who will be still imperfect and heal those who still need healing [διορθωτικὴν τῶν ἀτελῶν καὶ θεραπευτικῆν τῶν θεραπείαν δεομένων βασιλείαν], and will reign, leading under his feet the enemies of his kingdom [τοὺς τῆς βασιλείας ἐχθρούς].

[…] He will subject all beings to himself, and this must be understood as a salvific submission [Ὑποτάξει ἑαυτῷ τὰ πάντα, καὶ τοιαύτην τινὰ τὴν σωτήριον ὑποταγὴν χρὴ νοεῖν].

(Eccl. theol. 3.15-16) "

― Eusebius