Ephesians 6:14

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

2 Corinthians 6:7

in truthful speech, and in the power of God; with the weapons of righteousness for the right hand and for the left;

Hebrews 2:17

Therefore he had to be made like his brethren in every respect, so that he might become a merciful and faithful high priest in the service of God, to make atonement for the sins of the people.

1 Peter 4:1

Therefore, since Christ has suffered in the flesh, arm yourselves also with the same purpose, because he who has suffered in the flesh has ceased from sin,

1 John 1:9

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

Revelation 1:13

and in the midst of the lampstands one like a Son of Man, clothed with a robe down to the feet and girded round his chest with a golden band.

Revelation 3:14

"And to the angel of the church in Laodicea write: 'These are the words of the Amen, the faithful and true witness, the beginning of God's creation:

Treasury of Scripture Knowledge

Summary

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

General references

Bible References

Righteousness

2 Corinthians 6:7
in truthful speech, and in the power of God; with the weapons of righteousness for the right hand and for the left;
Ephesians 6:14
Stand firm therefore, having girded your loins with truth, and having put on the breastplate of righteousness,
1 Peter 4:1
Therefore, since Christ has suffered in the flesh, arm yourselves also with the same purpose, because he who has suffered in the flesh has ceased from sin,
Revelation 1:13
and in the midst of the lampstands one like a Son of Man, clothed with a robe down to the feet and girded round his chest with a golden band.

And faithfulness

Hebrews 2:17
Therefore he had to be made like his brethren in every respect, so that he might become a merciful and faithful high priest in the service of God, to make atonement for the sins of the people.
1 John 1:9
If we confess our sins, he is faithful and just, and will forgive us our sins and cleanse us from all unrighteousness.
Revelation 3:14
"And to the angel of the church in Laodicea write: 'These are the words of the Amen, the faithful and true witness, the beginning of God's creation:

General references

Galatians 5:15
But if you bite and devour one another, take care that you are not consumed by one another.