Here's what I posted last year (which was an excerpt from the year before):
And then to this group of disciples who have been huddled together in fear and, even in the joy of recognition, have been disbelieving, he now commissions them, "You are witnesses that the Scriptures have been fulfilled."
Commission--I am sending upon you what my Father promised. Stay here in this city until that power comes.
While they are waiting, they gather in the temple.
I'm thinking that many of us Christians have gotten stuck in that period between Ascension and Pentecost. We have known the presence of Christ. We have heard and believed the promised made to us. We're expecting something great to come among us. We are gathered together in great joy to continue our worship of the Lord. We love church and we love the Lord and we love each other. But....
He reminds them that the part of our Bible we call the Old Testament is valid--and necessary for their understanding. We aren't supposed to cut off a large part of the Bible and we aren't supposed to cut off a large part of our neighbors--The risen Christ said to them that they were to include in their witness all nations. Does "all nations" include the people who live on my block that I have never even spoke to? Does "all nations" include people who are of a different socio-economic level?