Finally, brethren, whatever things are true, whatever things are noble, whatever things are just, whatever things are pure, whatever things are lovely, whatever things are of good report, if there is any virtue and if there is anything praiseworthy—meditate on these things. (Philippians 4:8)
And let us not be weary in well doing. (Galatians 6:9)
We scientists have found that doing a kindness produces the single most reliable momentary increase in well-being of any exercise we have tested. (Flourish, by Martin Seligman, Psychologist)
Science of the Bible, by John Phillip Jaeger, page 6