The Gift of the Holy Spirit / Holy Communion
Acts 2:16-18
"...this is what was spoken through the prophet Joel:
'In the last days it will be, God declares,
that I will pour out my Spirit upon all flesh,
and your sons and your daughters
shall prophesy, and your young men
shall see visions, and your old men shall dream dreams.
Even upon my slaves, both men and women,
in those days I will pour out my Spirit;
and they shall prophesy."
The full realization of the Kingdom/realm of God on earth is no longer to be waited on, but it is happening now! The Holy Spirit is given to all who wish to receive it. It will burn in their hearts and transform them. Their lives will be forever changed.
And so, with a familiar passage and with all the glory of a major "holy-day", Pentecost is a launching time for a season of Accountable Small Groups both over the Summer and plans are laid for even more groups in the Fall.
The 1 Corinthians passages adds the Gifts of the Holy Spirit to the "Tongues of fire" passage in Acts which can lead into a class or a set of Saturday Workshops on the Gifts of the Holy Spirit.
A short term Accountable Small Group on Church Leadership skills would also be appropriate if you have your leadership taking office in July. (Some churches have moved their nominations to a June annual meeting in order to match the July to June School year. This gives the summer for leaders to prepare for a solid year of activities from August to June.)
The Summer season needn't be a "down time" for the church. Many people are still in town, especially the lonely ones living around the church. Make plans to offer Ice Cream Socials, Movies on the Lawn, Bike Rodeo's and lots of "low bar to entry" activities.
And alternate theme would be exploring forgivenss with the John's Gospel passage, perhaps couple with a "Keys to Forgiveness" workshop like the one found here.