If you do, then you realize the faithful slave is here. They are to feed Jesus' sheep, those who know Jesus would realize that he placed spiritual food above physical food, Mat 4:4. In line with the prophecy of the last days in Isa 2:2,3 those who come to God's house will be fed spiritually so they can walk in His paths, so someone is feeding Jesus' sheep spiritually, and the sheep are walking in God's ways. Although difficult as Jesus knew and phrased it the way he did, it is not impossible to identify the slave, and when you do, you wonder why you see it so easily, but didn't before.
Which reminds me of a simple riddle Amad, you might enjoy this sir, a man at a carnival wants to ride the ferris wheel, the price is 40 cents, he hands the ticket booth a dollar and the booth gives him 2 tickets and 20 cents change. How did the cashier know he wanted 2 tickets since he did not say?
This is extremely simple, but if you are anything like me, I knew it was impossible, but of course they want to sell as many tickets as they can, it is their livelihood after all, that was what went through my pea sized brain.