That he was sick (οτ ασθενε). Present active indicative retained in indirect discourse after a secondary tense (ηκουσεν).

Two days (δυο ημερας). Accusative of extent of time.

In the place where he was (εν ω ην τοπω). Incorporation of the antecedent τοπω into the relative clause, "in which place he was." It was long enough for Lazarus to die and seemed unlike Jesus to the sisters.