Charles Ellicott Commentary Matthew 21:36

"Again, he sent other servants more than the first: and they did unto them in like manner." — Matthew 21:36 (ASV)

Other servants more than the first.—There is, perhaps, a reference here to the greater power and fullness of the work of the later prophets, such as Isaiah, Jeremiah, and Ezekiel, stretching onward to that of the Baptist, as closing the whole line.