Let us, therefore, make every effort to enter that rest, so that no one will perish by following their example of disobedience.
NIV
Let us therefore be zealous and exert ourselves and strive diligently to enter that rest [of God, to know and experience it for ourselves], that no one may fall or perish by the same kind of unbelief and disobedience [into which those in the wilderness fell].
AMP
Let us labour therefore to enter into that rest, lest any man fall after the same example of unbelief.
KJV
Amnon became so obsessed with his sister Tamar that he made himself ill. She was a virgin, and it seemed impossible for him to do anything to her.
NIV
And Amnon was so troubled that he fell sick for his [half] sister Tamar, for she was a virgin, and Amnon thought it impossible for him to do anything to her.
AMP
And Amnon was so vexed, that he fell sick for his sister Tamar; for she was a virgin; and Amnon thought it hard for him to do anything to her.
KJV