Acts of the Apostles 2:41-42, 46

Those who believed what Peter said were baptized and added to the church that day—about 3,000 in all. All the believers devoted themselves to the apostles’ teaching, and to fellowship, and to sharing in meals (including the Lord’s Supper), and to prayer.

They worshiped together at the Temple each day, met in homes for the Lord’s Supper, and shared their meals with great joy and generosity