Matthew 4:23 -- 23-25 Jesus Heals Great Multitudes
all Galilee -- See Matthew 2:22.
synagogues -- The Jews assembled together each Sabbath to worship, but it seems that regular school classes for the boys may have also been conducted here. The origin of synagogues is involved in much obscurity. Some dating it as far back as only the Babylonian captivity, but it may date back to Solomon’s time or even earlier when he arranged for teachers to spread throughout the land to teach the Word of God. It may even date to the time when the cities of refuge were established and/or in each Levitical city that also become a school center.
The Israelites were among most literate people in the land of Canaan.
The sacrifices were appointed to be held in on place, at the tabernacle in Shiloh, and later in the temple in Jerusalem.
Praises to God were sung in the schools of the prophets and there was regular worship at designated times, 2 Kings 4:23; 1 Samuel 10:5-11.
Synagogues were built in any place where ten men were found who were willing to associate for the purpose, and were the regular customary places of worship. In them the law, i. e. the Old Testament, divided into suitable portions, was read, prayers were offered, and the Scriptures were expounded. The law was so divided that the five books of Moses, and portions of the prophets, could be read through each year. The Scriptures. after being read, were expounded. This was done, either by the officers of the synagogue, or by any person who might be invited by the officiating minister. Our Saviour and the apostles were in the habit of attending at those places continually, and of speaking to the people, Luke 4:15-27; A 13:14-15.
The synagogues were built in imitation of the temple, with a center building, supported by pillars, and a court surrounding it. See the notes at Matthew 21:12 In the center building, or chapel, was a place prepared for the reading of the law. The law was kept in a chest, or ark, near to the pulpit. The uppermost seats Matthew 23:6 were those nearest to the pulpit. The people sat around, facing the pulpit. When the law was read, the officiating person rose; when it was expounded, he was seated. Our Saviour imitated their example, and was commonly seated in addressing the people, Matthew 5:1; Matthew 13:1. - Barnes
teaching -- Instructing the people, or explaining the gospel.
the gospel of the kingdom -- The good news respecting the kingdom and the good news respecting the coming of the Messiah and the nature of his kingdom.
preaching -- Matthew 3:1
all manner of sickness -- all kinds of sickness.