1:15 “In those days” marks a transition to a new section.51 During this period of prayer and waiting, one essential item of business had to be considered by the young Christian community—the reconstitution of the apostolic circle of Twelve. Significantly, Luke made the parenthetical remark that the group numbered about 120 “believers.” “Believers” is a correct rendering of the Greek (“brothers”), since the term was not gender specific and would include female as well as male members of the community.