INTRO: Hebrews 3:1-6 is the doctrinal section to the second major warning given to these Jewish believers. The warning takes up the rest of chapter 3 and 4. There are six verses of teaching and 29 verses of warning. From this we may learn what this stanza of a poem I read says: Christian, walk carefully, danger is near! On in your journey with trembling and fear; Snares from without and temptations within Seek to entice you once more into sin. —Anon.
Let me pick up in chapter 3:5-6 said:
5 And Moses indeed was faithful in all His house as a servant, for a testimony of those things which would be spoken afterward,
6 but Christ as a Son over His own house, whose house we are if we hold fast the confidence and the rejoicing of the hope firm to the end.
The verb in the clause, "whose house we are" is a present tense. I interpret that to mean we continue to be Christ's house as long as we hold fast the confidence and rejoicing of the hope firm to the end. When these Jewish people became Christians, they had been on fire. Turn to Hebrews 10 for a moment. We'll begin in verse 32