John Gill

Now about the midst of the feast,.... About the fourth day of it, for it lasted eight days; this might be on the sabbath day, which sometimes was , "in the middle of the feast" (n); and the rather, since it follows, Jesus went up into the temple; as the Lord and proprietor of it, and as was his usual method; he had for some reasons kept himself retired till now, and now he appeared publicly: and taught the people his doctrine; he expounded the Scriptures, gave the true sense of them, and instructed the people out of them. (n) Misa. Succa, c. 5. sect. 5.