Contextual Healing

I was talking to this guy who has hated God and life and pretty much everything for years, since his wife killed their son while driving drunk. My mom has been ministering to him to him for almost a month now and he opened his bible for the first time in several years last week. I know this is a blog about writing and I'm getting to that, be patient, the pay off is worth it.
So last night, he opened his bible to a random page, put his finger on the page and read. The reference was Isaiah 49:7-19. This middle-aged construction worker was crying at what it said, saying that it was exactly what he was going through. I pulled out my phone to see what it said, opened my bible app that was already on Isaiah 49 (I had read it the night before because I was listening to a Misty Edwards song based on it).
Pretty much what 7-19 says is Israel is crying out, asking how God could have forsaken them and delivered them into the hands of their enemies etc. All that being said, I can make my point, context is all-powerful in understanding a text. In Revising Fiction, David Madden writes, "Context generates implications whether you like it or not..." In my example, the man was using the context of 7-19 and the implication was that God had forsaken his people and left them to the intentions of their enemies. The problem with this is the rest of the chapter (and even the rest of the book!)
If you read all of Isaiah 49 (or listen to the Misty Edwards song "I49") you realize that, even though Israel thinks that they have been forsaken by God like a "mother forget[ting] her nursing child," they are wrong. Isaiah is sent to proclaim to the people that God cares for them, will redeem them, and will deliver them out of their captivity.
In literature, we often make the same mistake of misreading the context. Since it has been written, people refer to Frankenstein's creation as "Frankenstein" but rightly use his name as the monster. Some one the other day called Casablanca one of the greatest love stories ever told. I asked them if they finished the movie, when Sam denies his love to defy the Nazis.
So I guess my point is, don't jump to conclusions when you see a disembodied piece of text, you have to look at it in its fullness to know what sort of creature it is.