What does Les say is the value of Isaiah 53 when witnessing to Jewish people?
Isaiah 53 remains an appropriate portion of Scripture for approaching Jewish people, as it presents the finished work of Christ and His First Advent. It is still useful in Jewish evangelism, pointing to Christ's atoning work and His coming. This makes it valuable when witnessing to Jewish people.
Les teaches that Isaiah 53 is still an appropriate portion of Scripture for approaching Jews about the finished work of Christ and His First Advent. In the passage, the Ethiopian eunuch was reading Isaiah the prophet, specifically Isaiah 53, and the Holy Spirit directed Philip to join his chariot. Les points out that this shows God's sovereignty in bringing Philip to that particular person at that time.