One of the major doctrines of the various ideologies that would go under the umbrella of progressive Christianity is that the Bible is not inerrant, and what Jesus says in the Gospels (which, unlike the rest of the Bible, are assumed to be true and accurate) overrules what is said elsewhere in the Bible.
This principle plays out in many ways. Some in the general progressive camp are much more upfront about this (e.g. author Benjamin Corey of the former Formerly Fundie blog) than others (like Peter Enns). But the general principle employed is that Jesus (i.e. what He says in the Gospels) is the only true revelation of God.
For this reason, none of the rest of the Bible is regarded as the word of God in any meaningful sense. The rest of the Bible is usually believed to be completely human in origin. The Israelites, in attempting to understand God as they imagined Him, wrote the Old Testament over the course of many centuries and attributed words and deeds to Him. It is not actually revelation from God, and therefore, there is no reason to try to harmonize it to the words of Jesus.
