My Take on the New Covenant (Part 4)

Read the series.
Last time we looked at Isaiah 42 and saw that Jesus is being referred to prophetically as a “covenant.” I insert here that when Isaiah 42:6 says “I will give You as a covenant to the people” it is not saying that Christ will be like a covenant; it is not a simile. It is better to read it as as an identification. It is like saying, “This knife can be used as a can-opener” or “I will give my van as a moving truck.” The knife is the can-opener and the van is the moving vehicle.
The NET Bible renders the place in question “I protect you and make you a covenant mediator for the people.” The word for “mediator” does not appear in the text. The reason the NET Bible gives for this is that “A person cannot literally be a covenant.” (N. 15). We know of course that Jesus is “the Mediator of the New Covenant” (Heb. 9:15). So shouldn’t that suffice? I don’t think we can leave it there. There are a few problems with it.
The first problem with claiming that Isaiah 42:6 refers to Christ as the Mediator of a covenant for the people is that the text simply does not say that. Neither does it say it in Isaiah 49: