28.6–13

The island is full of trees laden with ripe fruit.  They explore for forty days, living off the land, and eventually come to a river; Brendan says they cannot cross, and do not know the extent of the island.  A young man appears and welcomes them.  He tells Brendan that this is the the land they have been looking for.  They could not find it for so long because God wanted to show them the wonders of the ocean.

[6] Porrō ascendentibus dē nāvī, vīdērunt: in CL the subject of the ablative absolute would not also be the subject of the sentence.

nihil affuit illīs nox: CL would probably be nōn affuit illīs nox.

[7] Accipiēbant tantum dē pōmīs, et dē fontibus bibēbant: “they helped themselves only to fruits (etc.), and they drank from the springs.”  We learn at 28.14 that there were also precious stones.

[9] Istud flūmen: see 1.21.

[10] ecce iuvenis: another angelic figure. 

[11] “Beātī quī habitant, etc.: Psalm 83.5 (84.4): Blessed are they that dwell in thy house, O Lord: they shall praise the for ever and ever” (Beati qui habitant in domo tua, Domine; in saecula saeculorum laudabunt te).

in saeculum saeculī: “for ever and ever”; more common is in saecula saeculōrum. The combination of accusative and genitive is a Latinization of a Hebrew superlative.

[13] Ideō ... quia: "for this reason, ... namely that."