The Old Testament is sprinkled with prophetic references to the one we know as Jesus Christ. They can come up in the oddest places, sometimes in the middle of something else
God reveals little snippets here and there of his Plan. A capital letter is appropriate here, as it is the only plan that covers from before the beginning of time to beyond the end of time.
From the New Testament letter-writers we see how it all come into place as Paul and others reflect on Jesus Christ and his work. The Plan is all about love, love for the world as an expression of the love between Father and Son. The Plan is by no means finished, but we can be assured that God has written us into it. Everything we need to qualify for that has already been achieved for us. All we have to do is to say yes.