On Guru Granth Sahib: Who is a thief?

The following is an excerpt from a samvaad (dialogue) session with Acharya Prashant.

जे मोहाका घरु मुहै घरु मुहि पितरी देइ ॥ Je mohākā gẖar muhai gẖar muhi piṯrī ḏee.The thief robs a house, and offers the stolen goods to his ancestors.

अगै वसतु सिञाणीऐ पितरी चोर करेइ ॥ Agai vasaṯ siñāṇīai piṯrī cẖor karei.In the world hereafter, this is recognized, and his ancestors are considered thieves as well.

वढीअहि हथ दलाल के मुसफी एह करेइ ॥ vadẖīah hath ḏalāl ke musfī eh karei.The hands of the go-between are cut off; this is the Lord’s justice.

~Asa di Vaar (Guru Granth Sahib, Page 472)

Question: Dear Acharya Ji Pranaam! In these verses I find it difficult to understand that why it is being said that hands of the go-between are cut-off by the Lord? ‘Go-between’ as the negotiator.

I feel connected with this word simply because I have myself used this skill many a times while operating in the world. I have used this skill to bridge the…