Romans 6:16

6:16 Do you not know that if you present yourselves as obedient slaves, you are slaves of the one you obey, either of sin resulting in death, or obedience resulting in righteousness?

Romans 6:21

6:21 So what benefit did you then reap from those things that you are now ashamed of? For the end of those things is death.

Romans 6:23

6:23 For the payoff of sin is death, but the gift of God is eternal life in Christ Jesus our Lord.