'Poor' in the Bible

“The Lord makes poor and makes rich;He brings low and He lifts up.

“He raises up the poor from the dust,He lifts up the needy from the ash heapTo make them sit with nobles,And inherit a seat of honor and glory;For the pillars of the earth are the Lord’s,And He set the land on them.

So Saul’s servants spoke these words to David. But David said, “Is it a trivial thing in your sight to become a king’s son-in-law, seeing that I am a poor man and insignificant?”