The folk duo Brewer & Shipley only had one big hit, and it was "One Toke Over The Line", which suggests drug use based on the title alone. Released in 1970 on the album, "Tarkio" (aka "Tarkio Road"), the song peaked on the Hot 100 a year later. Hence being listed as a 1971 song in the following clip, taken from VH-1's initial My Generation series with Herman's Hermits frontman Peter Noone as host. Noone does not appear in the clip, however.
Believe it or else, the song was covered on, of all places, The Lawrence Welk Show, where they assumed it was a "modern spiritual", due to mentioning Jesus in the lyrics. All I can say is, judge for yourselves.