Dennis Bratcher of the Christian Resource Institute, writes of the Easter season in his article, The Easter Season: Resurrection of the Lord:
These special days and seasons are a means to shape sacred time, a structure in which to define what it means to be Christian and to call God’s people to reverent and faithful response to God…In anticipation of this emphasis at Pentecost, the Scripture readings during the Sundays of Easter are different, with readings from the Acts of the Apostles replacing readings from the Old Testament. This emphasizes that the church, as empowered by the Holy Spirit at Pentecost, is the best witness to the resurrection and the work of God in the world in Jesus the Christ.
I love the image, shaping sacred time. During the season of Easter we read the biblical texts that lift up the glory of the risen Christ in His Church and in His reign as King of Kings and Lord of Lords as described in the Book of Revelation. The purpose of these texts is to shape the sacred time in our lives so that we become more Christlike as individuals and as congregations – if you are a church member. The very idea of Easter week after week makes me happy and makes me appreciate deeply the power of God’s work in Jesus and in the Church that bears His name!