These words mark the beginning of a new part of the story. They refer to the period of time after Jesus ascended while the disciples were meeting in the upper chamber. AT: "During that time" (See: [[rc://en/ta/man/translate/writing-newevent]])
Here the word "brothers" refers to fellow believers and includes both men and women.
# it was necessary that the scripture should be fulfilled
This can be stated in active form. AT: "the things that we read about in scripture had to take place" (See: [[rc://en/ta/man/translate/figs-activepassive]])