That servant, in whom the Messiah finds no fault, is made ruler over all His household. It seems incongruent to think of all the flock as the chief steward or even all the sheep as shepherds. It may refer to the question among the Apostles as to which of them would be given to sit at Messiah's right hand as ruler over all His house, whose house are we, if we hold fast the confidence and the rejoicing of the hope firm unto the end. We shall all pass before the judgement seat of King Messiah. Let us strive to do what He told us to do.
I’ve read these posts of yours. Would you briefly summarize the point(s) you are attempting to make?
Speculation will avail you nothing. Since you invoked this text as proof or in support of purgatory you need to show that those suffering stripes were saved, which is not said but all are classed as unfaithful unprepared sinners, and that these souls where in in purgatory awaiting entrance into Heaven, yet the only location that is mentioned is that of with the lost, and the only experience mentioned is that of suffering.
And you need to show that this postmortem suffering was due to sins for which they has not been punished enough for while on earth, while others did so while still on earth (according to purgatorial doctrine), but instead there are no exceptions in the warnings, even inferred, and all the unfaithful, unprepared souls will be punished.
In short, what you need to show in order for this to support purgatory and overcome alternative explanations is what cannot be shown. Again, give it up, as your attempts are an argument against purgatory being Scriptural.