'Low' in the Bible

For he hath looked upon the low estate of his handmaid: For behold, from henceforth all generations shall call me blessed.

He hath put down princes from their thrones, And hath exalted them of low degree.

Every valley shall be filled, And every mountain and hill shall be brought low; And the crooked shall become straight, And the rough ways smooth;

But let the brother of low degree glory in his high estate:

and the rich, in that he is made low: because as the flower of the grass he shall pass away.