3:10 καὶ ἐνδυσάμενοι τὸννέον τὸν ἀνακαινούμενον εἰς ἐπίγνωσιν κατ’ εἰκόνα τοῦ κτίσαντος αὐτόν,
p.221the metaphor was quite common in Hebrew thought for putting on enabling graces from God (Job 29:14; Prov.31:25) ...Not simply individual virtues and graces are in view, but once again a whole personality and the social world and way of life that that implied. (cf. Rom.13:14, "putting on Christ")
the aorist event of the conversion-initiation past is qualified by an ongoing present: the new self is in process of being renewed (ἀνακαινούμενον). Paul uses the same term in 2Cor.4:16 for the experience of inner renewal which he found to accompany the physical affliction and attrition of his human resources which he underwent in the demanding circumstances of his missionary work.
the exhortation makes more explicit use of the motif of Adam and creation, in terms both of knowledge and of the image of God.This has the effect of reminding the readers that Christian ethics is not a matter merely of individual resolve, but involves a corporate dimension; Adam christology leads directly into a theology of the body of Christ.