John Wesley on Amos 7:1

Thus - This is the first of five prophetic representations of what was coming upon this people. The latter growth - The shooting up of the first growth being too luxuriant, they often eat it down with cattle; but if the second growth were eat up, it marred the whole harvest. Mowed - It is supposed the first mowing of the corn in the blade was for the king's use; and after this the second springing grew up to the harvest.