Isaiah 1:17

Learn to do good; seek justice, relieve the oppressed, judge the fatherless, plead for the widow.

Jeremiah 22:3

Thus says the LORD; Execute justice and righteousness, and deliver the plundered out of the hand of the oppressor: and do no wrong, do no violence to the stranger, the fatherless, nor the widow, neither shed innocent blood in this place.

Zephaniah 2:3

Seek you the LORD, all you meek of the earth, who have kept his commands; seek righteousness, seek meekness: it may be you shall be hidden in the day of the LORD'S anger.

Isaiah 1:23

Your princes are rebellious, and companions of thieves: everyone loves bribes, and follows after rewards: they judge not the fatherless, neither does the cause of the widow come before them.

Psalm 82:3-4

Defend the poor and fatherless: do justice to the afflicted and needy.

Proverbs 31:9

Open your mouth, judge righteously, and plead the cause of the poor and needy.

Jeremiah 22:15-16

Shall you reign, because you enclose yourself in cedar? did not your father eat and drink, and do justice and righteousness, and then it was well with him?

Daniel 4:27

Therefore, O king, let my counsel be acceptable unto you, and break off your sins by practicing righteousness, and your iniquities by showing mercy to the poor; if it may be a lengthening of your tranquility.

Micah 6:8

He has showed you, O man, what is good; and what does the LORD require of you, but to do justly, and to love mercy, and to walk humbly with your God?

Zechariah 7:9-10

Thus speaks the LORD of hosts, saying, Execute true judgment, and show mercy and compassion every man to his brother:

Zechariah 8:16

These are the things that you shall do; Speak you every man the truth to his neighbor; execute the judgment of truth and peace in your gates:

Treasury of Scripture Knowledge

Summary

Learn to do well; seek judgment, relieve the oppressed, judge the fatherless, plead for the widow.

Bible References

General references

Exodus 22:22
You shall not afflict any widow, or fatherless child.
Leviticus 25:14
And if you sell anything unto your neighbor, or buy anything of your neighbor's hand, you shall not oppress one another:
Leviticus 26:23
And if you will not be reformed by me by these things, but will walk contrary unto me;
Deuteronomy 25:1
If there is a controversy between men, and they come unto judgment, that the judges may judge them; then they shall justify the righteous, and condemn the wicked.
Job 9:30
If I wash myself with snow water, and make my hands ever so clean;
Proverbs 31:9
Open your mouth, judge righteously, and plead the cause of the poor and needy.