Charles Ellicott Commentary Mark 1:21

"And they go into Capernaum; and straightway on the sabbath day he entered into the synagogue and taught." — Mark 1:21 (ASV)

And they went into Capernaum.—Here Saint Mark’s narrative ceases to run parallel with that of Saint Matthew, and agrees almost verbally with Luke 4:31-37.

Straightway.—The frequent recurrence of this adverb, often disguised in the English version as “immediately,” “anon,” “by-and-by,” should be noticed as we proceed. It occurs forty-one times in the Gospel; nine times in this first chapter.