³ Dearly loved friends, I had been planning to write you some thoughts about the salvation God has given us, but now I find I must write of something else instead, urging you to stoutly defend the truth that God gave once for all to his people to keep without change through the years. ⁴ I say this because some godless teachers have wormed their way in among you, saying that after we become Christians we can do just as we like without fear of God’s punishment. The fate of such people was written long ago, for they have turned against our only Master and Lord, Jesus Christ.

⁵ My answer to them is: Remember this fact—which you know already—that the Lord saved a whole nation of people out of the land of Egypt and then killed every one of them who did not trust and obey him.