Exegesis:

hoi de kataxiōthentes tou aiōnos ekeinou tuchein kai tēs anastaseōs tēs ek nekrōn ‘but those who are judged worthy to attain that age and the resurrection from the dead.’ kataxioō. ho aiōn ekeinos is the age to come, cf. on 18.30. It is to be viewed in terms of temporal sequence. For ek nekrōn cf. on 9.7.

Translation:

Those who are accounted (or, thought/called) worthy, or slightly simplified, ‘those who are worthy,’ ‘those who are allowed’ (Bahasa Indonesia RC). The agent to be understood with this passive form is God. — Those, or, because of the subsequent reference to marriage “the men and women” (Good News Translation). For worthy see on 3.16.

To attain to, or ‘to reach/gain/find/experience,’ ‘to share in’ (cf. Balinese), ‘to be participants in’ (cf. Navajo).

To that age and to the resurrection from the dead is basically a hendiadys, the second phrase modifying or explaining the first; hence e.g. ‘that age, when the dead come to life again.’ — That age, i.e. ‘the age to come.’ The resurrection from the dead has virtually the same meaning as “the resurrection” in vv. 27 and 33.

Quoted with permission from Reiling, J. and Swellengrebel, J.L. A Handbook on the Gospel of Luke. (UBS Handbook Series). New York: UBS, 1971. For this and other handbooks for translators see here . Make sure to also consult the Handbook on the Gospel of Mark for parallel or similar verses.