'Poor' in the Bible

For who has had a poor opinion of the day of small things? for they will be glad when they see the weighted measuring-line in the hand of Zerubbabel. Then he said in answer to me, These seven lights are the eyes of the Lord which go quickly up and down through all the earth.

And oppress not the widow, nor the fatherless, the stranger, nor the poor; and let none of you imagine evil against his brother in your heart.

And I will feed the flock of slaughter, even you, O poor of the flock. And I took unto me two staves; the one I called Beauty, and the other I called Bands; and I fed the flock.

And it was broken in that day: and so the poor of the flock that waited upon me knew that it was the word of the LORD.