A certain Michael has asked me how this relates to the Emmaus road story (Luke 24:13-35). I'm glad for the question as thinking about it has helped confirm for me the truth that theological interpretation is and should always be a dialectic between dogmatics and exegesis, rather than a one-way street in either direction.
"Then beginning with Moses and all the prophets he interpreted to them the things about himself in all the scriptures."Moberly [*] points out that the logic of Jesus' expounding the Scriptures to his puzzled disciples is that these Scriptures provide a context and a content for making sense of Jesus, when all that the disciples know about him already somehow has not "clicked"; Israel's Scriptures help one make sense of Jesus. This represents the move from exegesis to dogmatics. Yet these disciples are Jews who are already thoroughly familiar with these Scriptures, many of which they would know by heart. So, Moberly concludes, "presumably a further part of the logic of Jesus' exposition is that the disciples need to be able to read these Scriptures in a new way, in the light of all that had happened surrounding Jesus, so that they can see in these Scriptures what they had not seen before; Jesus helps one make sense of Israel's Scriptures. Thus a two-way dialectic between Jesus and Israel's Scriptures is envisaged, both being necessary for Christian understanding of the crucified and risen Lord" (80).
The key point here is that it is the risen Jesus himself, an extra-textual reality, who positions us to be able to understand the texts that at the same time point to him. How do we get to know the Jesus who interprets the Bible for us? There are many ways, but central is the community of the church, who has preserved the Gospel for us and communicates it to us in summary forms such as in creeds and theological summa. One can't, on theological grounds, remove dogmatics from the activity of exegesis.
[*] R. W. L. Moberly, "Christ in All the Scriptures? The Challenge of Reading the Old Testament as Christian Scripture" Journal of Theological Interpretation I.I (2007) 79-100.