At the beginning of this eighth and final week of Easter, the Church celebrates the Solemnity of Pentecost. The apostles and the Blessed Virgin Mary receive the promise of our Savior in receiving the gift of the Holy Spirit. Emboldened by the Third Person of the Trinity, the apostles begin to fearlessly proclaim the Gospel beginning in Jerusalem.

Readings:

Acts 2:1-11
Psalm 104:1,24,29-31,34
1 Corinthians 12:3-7,12-13
John 20:19-23

Here are a few commentaries on these readings:

Power From Above - Pontifical Household preacher, Capuchin Father Raniero Cantalamessa

St. Charles Borromeo Lectionary Site (PDF)

A Mighty Wind - St. Paul Center for Biblical Theology

Pentecost Feast-The Gifts and Charisms of The Holy Spirit - The Crossroads Initiative