Eph. 1:13-14

every believer receives [yet compare Acts 19]
http://preacherstudy.com/free.htm

when the Ephesians received the Spirit (Acts 19)
http://www.crisispub.com/calvinism/pages/160-2.htm

A variety of points
http://www.revelationwebsite.co.uk/index1/lessons/Acts19_2.htm

until Jesus returns
http://www.campuslife.utoronto.ca/groups/coc/fellowship/thisweek8a.htm