Is there any church language in the early chapters of Acts?
No, the early chapters of Acts contain no church language. There is no mention of bishops, deacons, pastors, or how to behave in the house of God. Those church government terms and instructions come later from Paul, while Acts describes an extension of Judaism: temple worship, prayer, and healing in the name of Jesus Christ.
Les teaches that throughout the early chapters of Acts there isn't a word of church language. He notes there is no mention of bishops, deacons, or pastors, nor any instruction about how to behave in the house of God. He says most local churches get their ideas of church government from Paul, who describes the office of deacon, the requirements to be a pastor, and what it takes to be an elder and deacon. By contrast, early Acts is just an extension of Judaism: temple, worship, prayer at the ninth hour, and healing the lame man—not on the power of resurrection, but on the power of the Messiah, the Christ, the Lord Jesus of Nazareth, the Son of God.