Isaiah 11:5

And righteousness shall be the girdle of His loins, and faithfulness the girdle of His heart.

Isaiah 25:1

O Jehovah, You are my God; I will exalt You, I will praise Your name; for You have done a wonder; Counsels from afar; faithful faithfulness.

Ephesians 6:14

Therefore stand, having your loins girded about with truth, and having on the breastplate of righteousness

Psalm 93:1

Jehovah reigns, He is clothed with majesty; Jehovah is clothed with strength. He clothed Himself and the world is established; it shall not be shaken.

Isaiah 59:17

For He put on righteousness like a breastplate, and a helmet of salvation on His head. And He put on the garments of vengeance for clothing, and was covered with zeal like a cloak.

Hosea 2:20

I will even betroth you to Me in faithfulness. And you shall know Jehovah.

2 Corinthians 6:7

in the Word of Truth, in the power of God, through the weapons of righteousness on the right hand and on the left,

Hebrews 2:17

Therefore in all things it behoved him to be made like His brothers, that He might be a merciful and faithful high priest in things pertaining to God, to make propitiation for the sins of His people.

1 Peter 4:1

Therefore, Christ having suffered for us in the flesh, also you arm yourselves with the same thought, that he suffering in the flesh has been made to rest from sin,

1 John 1:9

If we confess our sins, He is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.

Revelation 1:13

And having turned, I saw seven golden lampstands. And in the midst of the seven lampstands I saw One like the Son of man, clothed with a garment down to the feet, and tied around the breast with a golden band.

Revelation 3:14

And to the angel of the church of the Laodicea write: The Amen, the faithful and true Witness, the Head of the creation of God, says these things:

Treasury of Scripture Knowledge

Summary

And righteousness shall be the girdle of his loins, and faithfulness the girdle of his reins.

Bible References

Righteousness

Isaiah 59:17
For He put on righteousness like a breastplate, and a helmet of salvation on His head. And He put on the garments of vengeance for clothing, and was covered with zeal like a cloak.
Psalm 93:1
Jehovah reigns, He is clothed with majesty; Jehovah is clothed with strength. He clothed Himself and the world is established; it shall not be shaken.
2 Corinthians 6:7
in the Word of Truth, in the power of God, through the weapons of righteousness on the right hand and on the left,
Ephesians 6:14
Therefore stand, having your loins girded about with truth, and having on the breastplate of righteousness
1 Peter 4:1
Therefore, Christ having suffered for us in the flesh, also you arm yourselves with the same thought, that he suffering in the flesh has been made to rest from sin,
Revelation 1:13
And having turned, I saw seven golden lampstands. And in the midst of the seven lampstands I saw One like the Son of man, clothed with a garment down to the feet, and tied around the breast with a golden band.

And faithfulness

Isaiah 25:1
O Jehovah, You are my God; I will exalt You, I will praise Your name; for You have done a wonder; Counsels from afar; faithful faithfulness.
Hosea 2:20
I will even betroth you to Me in faithfulness. And you shall know Jehovah.
Hebrews 2:17
Therefore in all things it behoved him to be made like His brothers, that He might be a merciful and faithful high priest in things pertaining to God, to make propitiation for the sins of His people.
1 John 1:9
If we confess our sins, He is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.
Revelation 3:14
And to the angel of the church of the Laodicea write: The Amen, the faithful and true Witness, the Head of the creation of God, says these things:

General references

Exodus 40:12
And you shall bring Aaron and his sons to the door of the tabernacle of the congregation, and wash them with water.
Psalm 9:8
And He shall judge the world in righteousness; He shall judge the peoples in uprightness.
Galatians 5:15
But if you bite and devour one another, take heed that you are not consumed by one another.