I hope you grasp the significance of the interchange. Since the Word is clearly equated with and identified as Yahweh in Genesis 12 and 15, when the New Testament has Jesus saying “that was me,” he is claiming to be the Word of the Old Testament, who was the visible Yahweh. This understanding is also behind some of the things Paul says about Abraham and Jesus. In Galatians 3:8 Paul says that the gospel—that God would justify the Gentile nations—was preached to Abraham. This is a clear reference to
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