Andrew Murray's âTrue Vineâ is a thirty-one day devotional examining the Parable of the Vine and the Branches in John 15 verses one to sixteen. Each dayâs devotional elaborates and expounds upon the chapter, offering deep and detailed spiritual insight on the meaning of phrases like âabiding in Christâ and âvine on the branchâ. The work is an inspirational guide on how to dwell in Godâs love, maintain communion with Christ and replace fear with peace of mind.