Re the expression Jesus Freaks:
Yesterday I attended a service at "lifechurch." Enthusiastic, friendly, positive folks. When I looked over the program today, I saw that lifw church is an Evangelical Covenant Church. A search on Google led me to their own web site and to a Wikipedia entry. It mentioned them in connection with the Jesus Freaks of the 1960's and 70's. I'm old enough to remember the movement (nevermind just how old) and I recall those folks as VERY enthusiastic but coming from a sound doctrine. So, thicken up that skin and understand that in the original usage, it wasn't so bad.