How can the first four Gospel accounts and part of Acts be considered more Old Testament than New Testament?
The first four Gospels and part of Acts are more Old Testament than New because they are an extension of Old Testament promises, especially the Abrahamic covenant, still looking forward to its fulfillment. They reflect God dealing with Israel on the basis of covenants rather than His later dealings with Gentiles on the basis of grace.
Les explains that after twenty years of teaching he concluded believers must throw off the brainwashing that the Bible is divided strictly at the Old and New Testament. The first four Gospels and even part of Acts remain more Old Testament than New because they continue the Old Testament promises and look forward to the fulfillment of the Abrahamic covenant. He ties the confusion in Christendom to failing to distinguish God's covenant dealings with Israel from His grace dealings with Gentiles. Zacharias could see this because God made the covenant with Abraham.