Baptism, monasteries, and the councils that defined Christ and grace

Unknown artist, mid-sixth century, Sinai. Christ blesses with his right hand and holds a Gospel book.
What monks and missionaries did in the sixth century

Disputes over Christ’s natures and over grace
Three councils, AD 529 to 589
An emperor and a pope who shaped the century

Compare the councils with the Lutheran Confessions
How does Bede’s account of King Æthelberht’s baptism show Christ’s grace at work?