Evil men do not understand justice,
But those who seek the LORD understand all.—Proverbs 28:5
Jeremiah says it best here:
"For My people are foolish,
They have not known Me.
They are silly children,
And they have no understanding.
They are wise to do evil,
But to do good they have no knowledge."—Jeremiah 4:22
Evil men do not comprehend justice because justice is not in their DNA. The Spirit of God does not live and reign in their hearts giving them the light of the glory of the knowledge of God in the face of His Son, Jesus. Therefore, they don’t care about justice...they only care about getting what they want..no matter the cost. Truly as James says:
For where envy and self-seeking exist, confusion and every evil thing are there.—James 3:16
But those who seek the LORD have the Spirit of God dwelling in their hearts. They have the mind of Christ and are daily being transformed into His image. They understand all.
Our God is a just God...it is a part of who He is. As His followers then, we are not only to desire justice for ourselves, but are to desire it for others as well.
Let nothing be done through selfish ambition or conceit, but in lowliness of mind let each esteem others better than himself. Let each of you look out not only for his own interests, but also for the interests of others. Let this mind be in you which was also in Christ Jesus,—Philippians 2:3-5
Beloved, we cannot then be indifferent to the suffering that goes on around us. Pray for truth to be revealed. Pray for hearts to be changed. Pray for the persecuted, the oppressed. The effective, fervent prayer of a righteous man avails much. Bear the burdens of those to whom God has sovereignly placed in your path and so fulfill the law of Christ. Love others with the self-sacrificing love of God. Love does no harm to a neighbor and therefore love is the fulfillment of the law.
Whoever therefore wants to be a friend of the world makes himself an enemy of God. 5 Or do you think that the Scripture says in vain, "The Spirit who dwells in us yearns jealously"? 6 But He gives more grace. Therefore He says:
"God resists the proud,
But gives grace to the humble."
7 Therefore submit to God. Resist the devil and he will flee from you. 8 Draw near to God and He will draw near to you. Cleanse your hands, you sinners; and purify your hearts, you double-minded. 9 Lament and mourn and weep! Let your laughter be turned to mourning and your joy to gloom. 10 Humble yourselves in the sight of the Lord, and He will lift you up.—James 4:4-10
The following cross reference verses for Proverbs 28:5 illuminate its truth.
The stupid man cannot know; the fool cannot understand this: (Psalms 92:6, ESV)
39 Therefore they could not believe. For again Isaiah said,
40 "He has blinded their eyes and hardened their heart, lest they see with their eyes, and understand with their heart, and turn, and I would heal them." (John 12:39, ESV)
I understand more than the aged, for I keep your precepts. (Psalms 119:100, ESV)
If anyone's will is to do God's will, he will know whether the teaching is from God or whether I am speaking on my own authority. (John 7:17, ESV)
14 The natural person does not accept the things of the Spirit of God, for they are folly to him, and he is not able to understand them because they are spiritually discerned. 15 The spiritual person judges all things, but is himself to be judged by no one. 16 "For who has understood the mind of the Lord so as to instruct him?" But we have the mind of Christ. (1 Corinthians 2:14, ESV)
If any of you lacks wisdom, let him ask God, who gives generously to all without reproach, and it will be given him. (James 1:5, ESV)
But you have been anointed by the Holy One, and you all have knowledge. (1 John 2:20, ESV)
But the anointing that you received from him abides in you, and you have no need that anyone should teach you. But as his anointing teaches you about everything, and is true, and is no lie-just as it has taught you, abide in him. (1 John 2:27, ESV)