Mark 1:21

“And they went into Capernaum, etc..] Jesus and his four disciples he had just called, Simon and Andrew, James and John; though the Arabic and Persic versions read, “he went”; that is, Christ; and so Beza says it was read in a certain copy: and straightway on the sabbath day he entered into the synagogue and taught; that is, immediately, as soon as he entered the, city, it being then sabbath day; or, as soon as the sabbath day came, he went to the synagogue at Capernaum, and his disciples with him; where the people used to meet weekly to hear the law read, and to be instructed in divine things; which opportunity Christ laid hold on to preach the Gospel to them, and teach them things…”

“HEALING OF A DEMONIAC IN THE SYNAGOGUE OF CAPERNAUM AND THEREAFTER OF SIMON'S MOTHER-IN-LAW AND MANY OTHERS--JESUS, NEXT DAY, IS FOUND IN A SOLITARY PLACE AT MORNING PRAYERS, AND IS ENTREATED TO RETURN, BUT DECLINES, AND GOES FORTH ON HIS FIRST MISSIONARY CIRCUIT. ( = Luk 4:31-44; Mat 8:14-17; Mat 4:23-25). (Mark 1:21-39) And they went into Capernaum--(See on Mat 4:13). and straightway on the sabbath day he entered into the synagogue, and taught--This should have been rendered, "straightway on the sabbaths He entered into the synagogue and taught," or "continued to teach." The meaning is, that as He began this practice on the very first sabbath after coming to settle at Capernaum, so He…”

“See also Luke 4:31-37. Mark 1:21 And they went into Capernaum - For the situation of Capernaum see the notes at Matthew 4:13. Straightway - Immediately. On the following Sabbath. The synagogue - See the notes at Matthew 4:23. And taught - In the synagogue, the presiding elder, after reading the Scriptures, invited anyone who chose to address the people, Acts 13:15. Though our Saviour was not a “priest” of the Levitical order or an “officer” of the synagogue, yet we find him often availing himself of this privilege, and delivering his doctrines to the Jews. Mark 1:22 He taught them as one that had authority ... - See the notes at Matthew 7:29. Mark 1:23 A man with an unclean spirit - See…”

“Luk 4:31. Mark 1:26”

“1:21-28 Jesus’ exorcisms reveal Jesus’ identity and his power over Satan (see study notes on Mark 1:12-13 and 3:27; see also 1:34, 39; 3:11-12, 22; 5:1-20; 6:13; 7:24-30; 9:14-29). 1:21 Mark introduces his first account of an exorcism with Jesus and his companions going into the synagogue in Capernaum. Jesus’ teaching in the synagogue suggests that he already had a reputation as a teacher and was therefore invited to speak (cp. Acts 13:15).”

“they went: Mar 2:1; Mat 4:13; Luk 4:31, Luk 10:15 Capernaum: Capernaum was a city of Galilee ( Luk 4:31), situated on the confines of Zebulun, and Naphtali ( Mat 4:13), on the western border of the lake of Tiberias ( Joh 6:59), and in the land of Gennesaret ( Mar 6:53; Mat 14:34), where Josephus places a spring of excellent water called Capernaum. Dr. Lightfoot places it between Tiberias and Tarichea, about two miles from the former; and Dr. Richardson, in passing through the plain of Gennesaret, was told by the natives that the ruins of Capernaum were quite near. The Arab station and ruins mentioned by Mr. Buckingham, said to have been formerly called Capharnaoom, situated on the edge of…”