Is the Gospel of Salvation in the Old Testament?

The topic that we've been looking at for a number of weeks, and that we'll continue to look at because it's so foundational to the faith; and that's the doctrine of Salvation. Last week we started to look at the book of Isaiah, particularly chapter 53 which is just an awesome passage, not that you could pick and choose and say one verse is better than another, these are all inspired by God. But this is particularly awesome to me because it really deals with the God of the universe becoming a man and dying for our sins. Last week I quoted from Charles Westley, "Amazing love how could it be, that thou my God wouldst die for me." That's just tremendous. And this, these passages in Isaiah 53 spell it out in a way that it's overwhelming. Again we're talking about God here. Now Dave, we left off with verse 3, "He is despised and rejected of men; a man of sorrows, and acquainted with grief: and we hid as it were our faces from him: he was despised, and we esteemed him not." Now last week we talked about that there was no beauty in him we went to the previous verse but....