Self-sacrifice
Part of speech: noun
Definition: The giving up of one's own benefit, especially giving up one's life, for the good of others.
Selflessness
Part of speech: noun
Definition: The quality or state of being selfless.
Example sentence: Many churches of all persuasions are hiring research agencies to poll neighborhoods, asking what kind of church they prefer. Then the local churches design themselves to fit the desires of the people. True faith in God that demands selflessness is being replaced by trendy religion that serves the selfish.