Final answer:
The common theme between the Gospel and Acts is the continuation of the work of the Spirit, which includes everyone being able to follow the teachings, universal open acceptance, and the ongoing influence of the Holy Spirit.
Step-by-step explanation:
A common theme between the Gospel and Acts is the continuation of the work of the Spirit, which includes elements of everyone being able to follow the teachings of Jesus (universalism), open acceptance regardless of social status, and the ongoing influence of the Holy Spirit in the lives of believers and their mission.
The early Christian church, as described in the Gospel and Acts, defied the Roman societal norms by promoting equality and breaking down social barriers. This was a radical shift from the prevailing Roman beliefs, exemplified by the story of Thecla, who, after hearing Saint Paul's teachings, made a radical life decision that went against her traditional societal expectations.
The spiritual equality inherited from Judaism and emphasized by Jesus indicates that the Gospel and Acts share the belief that salvation through Christ was open and potentially universal, regardless of one's background or heritage. St. Paul's teachings further established this idea, eventually leading most Christians to the understanding that anyone could become a Christian, not just Jews.