What does the Pentecost say about who Jesus is?

It says that Jesus died, resurrected, and is now living with His father in heaven.

Additional Answer:

The Pentecost, which is the 50th day of the 3rd month, depicts the Church as the firstfruits of salvation, the first to be spiritually begotten and born into the God Family - following Jesus as the 1st of the firstfruits, begotten by the Father.