Isaiah 11:5

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

Isaiah 25:1

O Jehovah, thou art my God; I will exalt thee, I will praise thy name; for thou hast done wonderful things, even counsels of old, in faithfulness and truth.

Ephesians 6:14

Stand therefore, having girded your loins with truth, and having put on the breastplate of righteousness,

Psalm 93:1

Jehovah reigneth; he is clothed with majesty; Jehovah is clothed with strength; he hath girded himself therewith: The world also is established, that it cannot be moved.

Isaiah 59:17

And he put on righteousness as a breastplate, and a helmet of salvation upon his head; and he put on garments of vengeance for clothing, and was clad with zeal as a mantle.

Hosea 2:20

I will even betroth thee unto me in faithfulness; and thou shalt know Jehovah.

2 Corinthians 6:7

in the word of truth, in the power of God; by the armor of righteousness on the right hand and on the left,

Hebrews 2:17

Wherefore it behooved him in all things to be made like unto his brethren, that he might become a merciful and faithful high priest in things pertaining to God, to make propitiation for the sins of the people.

1 Peter 4:1

Forasmuch then as Christ suffered in the flesh, arm ye yourselves also with the same mind; for he that hath suffered in the flesh hath ceased from sin;

1 John 1:9

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

Revelation 1:13

and in the midst of the candlesticks one like unto a son of man, clothed with a garment down to the foot, and girt about at the breasts with a golden girdle.

Revelation 3:14

And to the angel of the church in Laodicea write: These things saith the Amen, the faithful and true witness, the beginning of the creation of God:

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
And he put on righteousness as a breastplate, and a helmet of salvation upon his head; and he put on garments of vengeance for clothing, and was clad with zeal as a mantle.
Psalm 93:1
Jehovah reigneth; he is clothed with majesty; Jehovah is clothed with strength; he hath girded himself therewith: The world also is established, that it cannot be moved.
2 Corinthians 6:7
in the word of truth, in the power of God; by the armor of righteousness on the right hand and on the left,
Ephesians 6:14
Stand therefore, having girded your loins with truth, and having put on the breastplate of righteousness,
1 Peter 4:1
Forasmuch then as Christ suffered in the flesh, arm ye yourselves also with the same mind; for he that hath suffered in the flesh hath ceased from sin;
Revelation 1:13
and in the midst of the candlesticks one like unto a son of man, clothed with a garment down to the foot, and girt about at the breasts with a golden girdle.

And faithfulness

Isaiah 25:1
O Jehovah, thou art my God; I will exalt thee, I will praise thy name; for thou hast done wonderful things, even counsels of old, in faithfulness and truth.
Hosea 2:20
I will even betroth thee unto me in faithfulness; and thou shalt know Jehovah.
Hebrews 2:17
Wherefore it behooved him in all things to be made like unto his brethren, that he might become a merciful and faithful high priest in things pertaining to God, to make propitiation for the sins of the people.
1 John 1:9
If we confess our sins, he is faithful and righteous to forgive us our sins, and to cleanse us from all unrighteousness.
Revelation 3:14
And to the angel of the church in Laodicea write: These things saith the Amen, the faithful and true witness, the beginning of the creation of God:

General references

Exodus 40:12
And thou shalt bring Aaron and his sons unto the door of the tent of meeting, and shalt wash them with water.
Psalm 9:8
And he will judge the world in righteousness, He will minister judgment to the peoples in uprightness.
Galatians 5:15
But if ye bite and devour one another, take heed that ye be not consumed one of another.

American Standard Version Public Domain