It was every JW taking part in the preaching work. LOL.
(Matthew 24:45) “Who really is the faithful and discreet slave whom his master appointed over his domestics, to give them their food at the proper time?
w50 7/1 p. 199 par. 6 - Today the servants of Jehovah engaged in proclaiming the “good news” of the Kingdom...are busy in the King’s service “hunting” for the Lord’s other sheep, where they can be found. After they find one of the Lord’s sheep, they do as the Master told his disciple: “Feed my sheep.” Repeated visits are made on these, and home Bible studies are conducted with them, to the end that they may learn the good purposes of Jehovah...