I have been "blocked" by this set of components:
Since God is omnipotent, why would it be necessary for God to sacrifice his son, if that is all so painful. I mean, if God can do pretty much anything, He can get the result, forgiveness of man's sins, without any prerequisite.Preachers at the mission have explained things in these terms: A sacrifice had been necessary as atonement for sins. Jesus was the ultimate sacrifice, relieving mankind of the necessity of sacrificing animals for sin in the future, and it gains man an opportunity to return to an edenic heaven. By accepting Jesus into our heart, we are saved from sin and may see God and praise Him forever.
THAT explanation seems wildly strange to me. There is simply no logic I can find in the set of conditions and what transpires.
James, though, explains the crucifixion in this way [paraphrasing]:
Jesus should be seen as an example for us. His goodness and humility are qualities we should emulate and make authentic for our self. We should strive to be courageous, willing to pay the ultimate price in our love of God and in our love of our neighbors (which are everybody, including those who see us as as their enemy).