Ye have your fruit unto sanctification (εχετε τον καρπον υμων εις αγιασμον). Freedom from sin and slavery to God bring permanent fruit that leads to sanctification.

And the end eternal life (το δε τελος ζωην αιωνιον). Note accusative case ζωην αιωνιον, object of εχετε (ye have), though θανατος in contrast above is nominative.