Easter is the reason why Christianity is not a religion.
A religion is when people believe they can make good with god through their own works. It takes God completely out of the picture
In Christianity works have nothing to do with it.
We are all sinners and must be punished.
Christ took out punishment on the Cross. He then proved this by rising from the dead. He could only do this if he was without sin.
Therefore God has done it all. We only have to accept it.
Thus there are only two kinds of sinners.
Forgiven and unforgiven ones. It is best to be a forgiven one and accept Christ's sacrifice.