Created and/or prepared for eternal life (in a glorified body)

ὁ δὲ κατεργασάμενος ἡμᾶς εἰς αὐτὸ τοῦτο θεός, ὁ δοὺς ἡμῖν τὸν ἀρραβῶνα τοῦ πνεύματος.

     2 Cor 5:5.

The [one] having created/prepared us for this very thing

[namely, the 'building [(οἰκοδομὴν)] from God'; the 'house [(οἰκίαν)] not made with hands, eternal in the heavens'; 'our heavenly dwelling [(οἰκητήριον)]'; being 'further clothed'; being 'swallowed up by life']

[is] God, the [one] having given us the pledge of the Spirit.