could someone explain to me why Jesus had to die for us on the cross for our sins? i dont understand it...and was it a particular sinful group of people...i don't get how it has to do with people nowadays sins because he lived so long ago. and why did whoever kill him let him die on the cross? why didnt somebody else step up. you probably think im very ignorant. but im not a christian. im on the way to finding my religion.