'Benefit' in the Bible

If you do good to those who do good to you, what credit is that to you? For even sinners do the same.

But love [that is, unselfishly seek the best or higher good for] your enemies, and do good, and lend, expecting nothing in return; for your reward will be great (rich, abundant), and you will be sons of the Most High; because He Himself is kind and gracious and good to the ungrateful and the wicked.

For what does it benefit a person if he gains the whole world but loses or forfeits himself?