Different cultures, languages, and skin colors were all drawn by the sound of the disciple speaking, and were amazed that each one of them was being addressed in their own tongue. Then Paul goes on to talk about there are different parts of the body, yet but one body, and different gifts, yet the same Spirit.
Can we see beyond differences among us and notice God speaking to us all, and working in us all? Often, it's the differences that stand out for us, and we don't see how we are all one, let alone that God speaks to us all, in such a way that each one of us can understand.
What the Lord says first of all, as he did where the disciples were gathered out of fear, is "Peace be with you," and he sends us out to share that peace with one another, no matter what differences loom among us.
He breathes on us, and says, "Receive the Holy Spirit."