WHY the Cross?

Hebrews 2:14

"For as much then as the children are partakers ** of flesh and blood, He also likewise took part ** of the same; that through death He might destroy him that had the power of death, that is, the Devil"

** partakers, Greek ("koinoneo"),
i.e. by distribution (passed down - as in Romans 5:12)
** took part, Greek ("metecho"),
i.e. by ingestion (eating or drinking - as in Romans 5:19)