'Selfish' in the Bible

When Judas, His betrayer, saw that Jesus was condemned, he was gripped with remorse and returned the thirty pieces of silver to the chief priests and the elders,

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.

But if you have bitter jealousy and selfish ambition in your hearts, do not be arrogant, and [as a result] be in defiance of the truth.

For where jealousy and selfish ambition exist, there is disorder [unrest, rebellion] and every evil thing and morally degrading practice.

You ask [God for something] and do not receive it, because you ask with wrong motives [out of selfishness or with an unrighteous agenda], so that [when you get what you want] you may spend it on your [hedonistic] desires.