Crack or Crevice.

 This is twice this week ive heard these words "crack or crevice"

   Once in a video for a Devotional called lift the veil from your Bible and now in a Devotional called Meditate Psalm 139

The first time I heard it I laughed because the guy was telling the story of when Moses seen the glory of God. He said he seen the backside of God's glory through the crack in the rock. And I know it's stupid but I thought of the crack of a bum ...because he said backside and in Scottish language a backside is a bum ..