“If anyone would come after me,
he must deny himself and take up his cross and follow me.”
Matthew 16:24 (NIV)
When we look at humanity we can easily see that many people have a spirit of self protection that seems to border on the area of personal greed. Little children are a good example of how young this tendency can emerge in our behaviour.
When Billy wants a toy his younger sister is happily playing with he will try to grab it from her. If she resists he may take what is in his hand and hit her on the head to make her drop the desired toy. He is blissfully unaware of her cries of pain as he then starts to enjoy the toy she dropped to clutch her aching head.
Billy will be playing merrily with something when a sibling enters the room and picks up a toy that belongs to him. Although he was not playing with the toy his sense of territory rises to the surface and he insists his little sister leave the toy alone. The fact he does not want to play with it is irrelevant.