Without a doubt this is one of the most asked questions of Universalist, everywhere we post we come across this question.
Here is my answer to this question
For me the reason Jesus was sent and the reason Jesus sends us is to free people through Him from sin and death. Salvation is not complete just because one believes Jesus died for them. Believing is only the starting point on our journey toward full salvation, for we are reconciled by His death, but saved by His life.
All men everywhere are already reconciled by His death, this is a done deal because He died 2000 years ago for all men's reconciliation and mans belief or unbelief CANNOT change this fact. If someone does not believe Jesus died for then simply does not change the fact that He did.
So then all men everywhere have already been reconciled, but not all men are yet saved from sin and death.
Therefore Jesus send us out in order to proclaim His salvation by His LIFE.His death reconciled all men, but His LIFE is what saves all men, this salvation is not a one time deal as such, but is a long process of walking in His LIFE and forsaking our own. Taking up the cross and following Him and enduring unto the end that we might be saved.
Thus we are told to proclaim His death and therefore His reconciliation for all men as a FACT that cannot be disputed , and we are to do this so that the entire world can have the same hope in His LIFE that we to have. Thus it is not by His death that sin and death are defeated but by His LIFE.
When we witness about that which Jesus done, we are first to tell all men that they have been reconciled because of His death, this fact breathes hope into the world that God does indeed love them. Then after people become aware of the fact of this reconciliation by His death we are to proclaim His resurrection. And it is because of the fact that He was resurrected OUT OF DEATH that the world is given hope of the same resurrection OUT OF DEATH. We are NOT saved from death, we are saved OUT OF DEATH, for it was while we were DEAD in sin that He died and was raised to life again for us.
So the resurrection is a moving from DEATH to LIFE, so as He died for all men, so to did He rise for all men, and this is the gospel of the good new toward ALL MEN EVERYWHERE.
If one believes Jesus died for all men, should it not go without saying that when He rose again that it was for all men also? Can we really separate His death from His resurrection? If so, how then can DEATH be swallowed up of LIFE?