John Chrysostom — as excerpted in the Catena Aurea on Luke 13:1-5

“(ubi sup.) Again, there had been eighteen others crushed to death by the falling of a tower, of whom He adds the same things, as it follows, Or those eighteen upon whom the tower of Siloam fell and slew them, think ye that they were sinners above all men that dwell in Jerusalem? I tell you, Nay, For he does not punish all in this life, giving them a time meet for repentance. Nor however does he reserve all for future punishment, lest men should deny His providence.”