'Intense' in the Bible

Rejoice on that day and leap for joy, for your reward in heaven is great [absolutely inexhaustible]; for their fathers used to treat the prophets in the same way.

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.