Job 29:16

I was a father to the needy. The cause of him who I didn't know, I searched out.

Proverbs 29:7

The righteous care about justice for the poor. The wicked aren't concerned about knowledge.

Exodus 18:26

They judged the people at all times. They brought the hard causes to Moses, but every small matter they judged themselves.

Deuteronomy 13:14

then you shall inquire, and make search, and ask diligently; and, behold, if it be truth, and the thing certain, that such abomination is done in the midst of you,

Deuteronomy 17:8-10

If there arises a matter too hard for you in judgment, between blood and blood, between plea and plea, and between stroke and stroke, being matters of controversy within your gates; then you shall arise, and go up to the place which Yahweh your God shall choose;

1 Kings 3:16-28

Then two women who were prostitutes came to the king, and stood before him.

Esther 2:7

He brought up Hadassah, that is, Esther, his uncle's daughter; for she had neither father nor mother. The maiden was fair and beautiful; and when her father and mother were dead, Mordecai took her for his own daughter.

Job 24:4

They turn the needy out of the way. The poor of the earth all hide themselves.

Job 31:18

(no, from my youth he grew up with me as with a father, her have I guided from my mother's womb);

Psalm 68:5

A father of the fatherless, and a defender of the widows, is God in his holy habitation.

Proverbs 25:2

It is the glory of God to conceal a thing, but the glory of kings is to search out a matter.

Ephesians 5:1

Be therefore imitators of God, as beloved children.

James 1:27

Pure religion and undefiled before our God and Father is this: to visit the fatherless and widows in their affliction, and to keep oneself unstained by the world.

Treasury of Scripture Knowledge

Summary

I was a father to the poor: and the cause which I knew not I searched out.

General references

Bible References

The cause

Exodus 18:26
They judged the people at all times. They brought the hard causes to Moses, but every small matter they judged themselves.
Deuteronomy 13:14
then you shall inquire, and make search, and ask diligently; and, behold, if it be truth, and the thing certain, that such abomination is done in the midst of you,
Deuteronomy 17:8
If there arises a matter too hard for you in judgment, between blood and blood, between plea and plea, and between stroke and stroke, being matters of controversy within your gates; then you shall arise, and go up to the place which Yahweh your God shall choose;
1 Kings 3:16
Then two women who were prostitutes came to the king, and stood before him.
Proverbs 25:2
It is the glory of God to conceal a thing, but the glory of kings is to search out a matter.
Proverbs 29:7
The righteous care about justice for the poor. The wicked aren't concerned about knowledge.

General references

Proverbs 31:9
Open your mouth, judge righteously, and serve justice to the poor and needy."