And upon the first day of the week, when the disciples came together to break bread, Paul preached unto them, ready to depart on the next day; and continued his speech until midnight.
All Commentaries on Acts 20:7 Go To Acts 20
Richard Challoner
AD 1781
And on the first day of the week: Here St. Chrysostom and many other interpreters of the scripture explain, that the Christians even at this time, must have changed the sabbath into the first day of the week, (the Lord's day,) as all Christians now keep it. This change was undoubtedly made by the authority of the church; hence the exercise of the power, which Christ had given to her: for he is Lord of the sabbath.