The links with the lawsuit motif are not limited to Isaiah 40-55 within Isaiah. Note Isaiah 11:1-10.
This speaks of the future Davidic king as the bearer of the Spirit and as one who shall not judge by appearance or outward glory, or convict on the basis of report role in John’s Gospel lawsuit in John 16:8, and elsewhere Jesus issues the warning not to judge by appearances but to judge with right judgment John 7:24. It exemplifies this standard of judgment Himself John 8:15-16. The messianic king is also said to be a sign for the nations.