Around the third hour he went out and saw others standing idle in the marketplace.
This verse shows the landowner’s ongoing care and initiating will: he does not limit himself to the first call, but goes out again to seek those who have not yet been brought into the work. To be “standing idle” is not presented as laziness, but as waiting for a call, which emphasizes that God’s call always comes before a person’s acting. This episode reveals the dynamic of God’s grace: He approaches people at different times, in different circumstances, and no one is outside the scope of His care as long as the day has not ended.