{That he would eat with him} (hina phag(8869) met' autou).
Second aorist active subjunctive. The use of hina after
er(9374)a(935c) (see also  Lu 16:27 ) is on the border between the pure
object clause and the indirect question (Robertson, _Grammar_, p.
1046) and the pure final clause. Luke has two other instances of
Pharisees who invited Jesus to meals ( 11:37  14:1 ) and he alone
gives them. This is the Gospel of Hospitality (Ragg). Jesus would
dine with a Pharisee or with a publican ( Lu 5:29  Mr 2:15  Mt
9:10 ) and even invited himself to be the guest of Zaccheus ( Lu
9:5 ). This Pharisee was not as hostile as the leaders in
Jerusalem. It is not necessary to think this Pharisee had any
sinister motive in his invitation though he was not overly
friendly (Plummer).