Three possible interpretations of Psalm 95:11 prepare us for understanding the discussion in Hebrews 3:7ff regarding the generation in the wilderness that did not enter into God's rest. An important preface to the Sabbath discussion of Hebrews 4.
Psalm 95:11 says, "Therefore I swore in my wrath, 'They shall not enter my rest.'" The Book of Hebrews quotes this verse and interprets it in three possible directions: