The Insight Book explains the Matthew 24:45 this way;
"Faithful and Discreet Slave - those forming the Christian congregation are referred to by the apostle Paul as "members of the household of God" (Eph 2:19; 1Ti 3:15), and the same apostle shows that ‘faithful stewardship’ among such household members involved the dispensing of spiritual truths on which
those becoming believers would ‘feed.’ (1Co 3:2, 5; 4:1, 2; compare Mt 4:4.) Whereas this was a prime responsibility of those appointed as ‘shepherds’ of the flock (1Pe 5:1-3), the apostle Peter shows that such stewardship of the divine truths was actually committed to all the ‘chosen ones,’ all the spirit-anointed ones, of the Christian congregation. (1Pe 1:1, 2; 4:10, 11) Thus the entire anointed Christian congregation was to serve in a united stewardship, dispensing such truths. At the same time the individual members making up such composite body, or the "domestics" making up the "house" of God (Mt 24:45; Heb 3:6; Eph 2:19), would also be recipients of the "food" dispensed. (Heb 5:11-14; compare 1Co 12:12, 19-27.) Expanded responsibility would result from faithfulness maintained untilthe master’s promised ‘arrival.’
Many problems occur with the assertions made by this so-called "understanding":
1) The F&DS make up the Christian Congregation - why only them?
2) Only they are part of the household of God - why not others?
3) Only they are described as "chosen ones" - Why? What about Isaiah 65:15, 22?
4) "The entire anointed Christian congregation was to serve.........dispensing such truths". So why is this restricted to less than a dozen who claim to be of the heavenly hope? 5) The food was for the domestics only - so nothing for the so-called other sheep?????????