Gregory the Dialogist

For thou hast taken a pledge from thy brother for nought, and stripped the naked of their clothing. ALLEGORICAL INTERPRETATION In Holy Scripture by the term of 'a pledge' sometimes the gifts of the Holy Spirit, and sometimes the confession of sin, are denoted. Thus pledge is taken as the gift of the Holy Spirit, as where it is said by Paul, And given the earnest of the Spirit in our hearts. For we receive a pledge for this, that we may hold an assurance touching the promise that is made to us. …

Morals on the Book of Job, Book XVI ↗

Thomas Aquinas

Then he first explains an observation about injuries born to neighbors, which are sometimes inflicted by means of calumny under the pretext of justice. So he says, "You took away the pledge of security of your brother without cause," without necessary things, because you were able to trust your brothers without a pledge of security. …

Commentary on Job ↗