Romans 3:26

which God did suffer to show at this time: the righteousness that is allowed of him, that he might be counted just, and a justifier of him which believeth on Jesus.

Deuteronomy 32:4

He is a Rock, and perfect are his deeds, for all his ways are with discretion. God is faithful and without wickedness, both righteous and just is he.

Psalm 85:10-11

Mercy and truth are met together; righteousness and peace have kissed each other.

Isaiah 42:21

The LORD be merciful unto them for his righteousness' sake, that his word might be magnified and praised.

Isaiah 45:21

Let men draw nigh, let them come hither, and ask counsel one at another, and show forth: "What is he, that told this before?" Or, "Who spake of it, ever since the beginning?" Have not I, the LORD, done it: without whom there is none other God? The true God and Saviour, and there is else none but I.

Zephaniah 3:5

But the just LORD that doth no unright, was among them, every morning showing them his law clearly, and ceased not. But the ungodly will not learn to be ashamed.

Zephaniah 3:15

For the LORD hath taken away thy punishment, and turned back thine enemies. The king of Israel, even the LORD himself is with thee: so that thou needest no more to fear any misfortune.

Zechariah 9:9

Rejoice thou greatly, O daughter Zion; be glad, O daughter Jerusalem. For lo, thy King cometh unto thee, even the righteous and Saviour: Lowly and simple is he, he rideth upon an ass, and upon the foal of an ass.

Acts 13:38-39

Be it known unto you therefore, ye men and brethren, that through this man is preached unto you the forgiveness of sins;

Romans 3:30

For it is God only which justifieth circumcision, which is of faith: and uncircumcision through faith.

Romans 4:5

To him that worketh not, but believeth on him that justifieth the ungodly, is his faith counted for righteousness.

Romans 8:33

Who shall lay anything to the charge of God's chosen? It is God that justifieth:

Galatians 3:8-14

For the scripture saw aforehand, that God would justify the heathen through faith, and therefore showed beforehand glad tidings unto Abraham: "In thee shall all nations be blessed."

Revelation 15:3

and they sang the song of Moses the servant of God, and the song of the lamb, saying,

Treasury of Scripture Knowledge

Summary

To declare, I say, at this time his righteousness: that he might be just, and the justifier of him which believeth in Jesus.

Bible References

That he

Deuteronomy 32:4
He is a Rock, and perfect are his deeds, for all his ways are with discretion. God is faithful and without wickedness, both righteous and just is he.
Psalm 85:10
Mercy and truth are met together; righteousness and peace have kissed each other.
Isaiah 42:21
The LORD be merciful unto them for his righteousness' sake, that his word might be magnified and praised.
Isaiah 45:21
Let men draw nigh, let them come hither, and ask counsel one at another, and show forth: "What is he, that told this before?" Or, "Who spake of it, ever since the beginning?" Have not I, the LORD, done it: without whom there is none other God? The true God and Saviour, and there is else none but I.
Zephaniah 3:5
But the just LORD that doth no unright, was among them, every morning showing them his law clearly, and ceased not. But the ungodly will not learn to be ashamed.
Zechariah 9:9
Rejoice thou greatly, O daughter Zion; be glad, O daughter Jerusalem. For lo, thy King cometh unto thee, even the righteous and Saviour: Lowly and simple is he, he rideth upon an ass, and upon the foal of an ass.
Acts 13:38
Be it known unto you therefore, ye men and brethren, that through this man is preached unto you the forgiveness of sins;
Revelation 15:3
and they sang the song of Moses the servant of God, and the song of the lamb, saying,

And

Romans 3:30
For it is God only which justifieth circumcision, which is of faith: and uncircumcision through faith.
Romans 4:5
To him that worketh not, but believeth on him that justifieth the ungodly, is his faith counted for righteousness.
Romans 8:33
Who shall lay anything to the charge of God's chosen? It is God that justifieth:
Galatians 3:8
For the scripture saw aforehand, that God would justify the heathen through faith, and therefore showed beforehand glad tidings unto Abraham: "In thee shall all nations be blessed."

General references

Leviticus 16:14
And he shall take of the blood of the ox and sprinkle it with his finger before the mercy seat eastward: even seven times.
Numbers 7:15
and an ox, a ram and a lamb of a year old for burnt offerings;
Romans 3:28
We suppose, therefore we hold, that a man is justified by faith without the deeds of the law.