Adam Clarke on Acts 15:28

For it seemed good to the Holy Ghost, and to us - The whole council had met under his direction; had consulted under his influence; and gave forth their decree from his especial inspiration.

Necessary things - They were necessary, howsoever burthensome they might appear; and necessary, not only for the time, place, or occasion; but for all times, all places, and all occasions. See this proved in the observations at the end of this chapter.