Proverbs 14:31

An oppressor of the poor reproacheth his Maker, And whoso is honouring Him Is favouring the needy.

Proverbs 17:5

Whoso is mocking at the poor Hath reproached his Maker, Whoso is rejoicing at calamity is not acquitted.

Proverbs 22:2

Rich and poor have met together, The Maker of them all is Jehovah.

Proverbs 19:17

Whoso is lending to Jehovah is favouring the poor, And his deed He repayeth to him.

Job 31:13-16

If I despise the cause of my man-servant, And of my handmaid, In their contending with me,

Psalm 12:5

Because of the spoiling of the poor, Because of the groaning of the needy, Now do I arise, saith Jehovah, I set in safety him who doth breathe for it.

Proverbs 14:21

Whoso is despising his neighbour sinneth, Whoso is favouring the humble, O his happiness.

Proverbs 22:16

He is oppressing the poor to multiply to him, He is giving to the rich -- only to want.

Proverbs 22:22-23

Rob not the poor because he is poor, And bruise not the afflicted in the gate.

Ecclesiastes 5:8

If oppression of the poor, and violent taking away of judgment and righteousness thou seest in a province, do not marvel at the matter, for a higher than the high is observing, and high ones are over them.

Matthew 25:40-46

And the king answering, shall say to them, Verily I say to you, Inasmuch as ye did it to one of these my brethren -- the least -- to me ye did it.

John 12:8

for the poor ye have always with yourselves, and me ye have not always.'

2 Corinthians 8:7-9

but even as in every thing ye do abound, in faith, and word, and knowledge, and all diligence, and in your love to us, that also in this grace ye may abound;

1 John 3:17-21

and whoever may have the goods of the world, and may view his brother having need, and may shut up his bowels from him -- how doth the love of God remain in him?

1 John 4:21

and this is the command we have from Him, that he who is loving God, may also love his brother.

Treasury of Scripture Knowledge

Summary

He that oppresseth the poor reproacheth his Maker: but he that honoureth him hath mercy on the poor.

Bible References

That oppresseth

Proverbs 17:5
Whoso is mocking at the poor Hath reproached his Maker, Whoso is rejoicing at calamity is not acquitted.
Proverbs 22:2
Rich and poor have met together, The Maker of them all is Jehovah.
Job 31:13
If I despise the cause of my man-servant, And of my handmaid, In their contending with me,
Psalm 12:5
Because of the spoiling of the poor, Because of the groaning of the needy, Now do I arise, saith Jehovah, I set in safety him who doth breathe for it.
Ecclesiastes 5:8
If oppression of the poor, and violent taking away of judgment and righteousness thou seest in a province, do not marvel at the matter, for a higher than the high is observing, and high ones are over them.
Matthew 25:40
And the king answering, shall say to them, Verily I say to you, Inasmuch as ye did it to one of these my brethren -- the least -- to me ye did it.

But

Proverbs 14:21
Whoso is despising his neighbour sinneth, Whoso is favouring the humble, O his happiness.
Proverbs 19:17
Whoso is lending to Jehovah is favouring the poor, And his deed He repayeth to him.
Matthew 25:40
And the king answering, shall say to them, Verily I say to you, Inasmuch as ye did it to one of these my brethren -- the least -- to me ye did it.
John 12:8
for the poor ye have always with yourselves, and me ye have not always.'
2 Corinthians 8:7
but even as in every thing ye do abound, in faith, and word, and knowledge, and all diligence, and in your love to us, that also in this grace ye may abound;
1 John 3:17
and whoever may have the goods of the world, and may view his brother having need, and may shut up his bowels from him -- how doth the love of God remain in him?
1 John 4:21
and this is the command we have from Him, that he who is loving God, may also love his brother.

General references

Leviticus 25:14
'And when thou sellest anything to thy fellow, or buyest from the hand of thy fellow, ye do not oppress one another;
Deuteronomy 24:14
'Thou dost not oppress a hireling, poor and needy, of thy brethren or of thy sojourner who is in thy land within thy gates;
Proverbs 3:9
Honour Jehovah from thy substance, And from the beginning of all thine increase;