Then he opened their minds to understand the Scriptures. And he said, “Yes, it was written long ago that the Messiah would suffer and die and rise from the dead on the third day. It was also written that this message would be proclaimed in the authority of his name to all the nations (panta ta ethne), beginning in Jerusalem: ‘There is forgiveness of sins for all who repent.’ – Luke 24:45-47
The context here is crucial. “it was written long ago” (in the Old Testament), followed (in the original Greek) by three coordinate infinitive clauses which make explicit what’s written in the Old Testament: first, that Christ is to suffer, second, that He is to die and rise from the dead on the third day, and third, that the message, forgiveness of sins for all who repent would be proclaimed in His name to all the nations.
Therefore, we have strong evidence that the panta ta ethne in Luke 24:47 was understood by Jesus not merely in terms of Gentile individuals, but as an array of world peoples who must hear the message of repentance for the forgiveness of sin.
Christ’s desire is to change the people’s life through His kindness, not through punishments and reproving