Ps 37:4
Delight yourself also in the Lord, and He will give you the desires and secret petitions of your heart.

What does it actually mean to delight in? Here is a way to find out what the word in the original Hebrew was. I am enclosing a link at the bottom of the page. This is very cool. I first discovered Strongs Bible Dictionary when I went to Piedmont Bible College. It is a great tool for anyone who wants to dig deeper.

The KJV Old Testament Hebrew Lexicon
Strong's Number: 06026
Browse Lexicon
Original Word
Word Origin
gn[
a primitive root
Transliterated Word
TDNT Entry
`anag
TWOT - 1648
Phonetic Spelling
Parts of Speech
aw-nag'
Verb
Definition
to be soft, be delicate, be dainty
(Pual) to be delicate
(Hithpael)
to be of dainty habit, be pampered
to be happy about, take exquisite delight
to make merry over, make sport of

King James Word Usage - Total: 10
delight 7, delicate 1, delicateness 1, sport 1

KJV Verse Count
Deuteronomy
1
Job
2
Psalms
2 (Ps 34:7)
Isaiah
4
Jeremiah
1
Total
10
The Hebrew lexicon is Brown, Driver, Briggs, Gesenius Lexicon; this is keyed to the "Theological Word Book of the Old Testament." These files are considered public domain. If you want to look up any word in the Bible in the original Hebrew, this is a good resource when you want to know what God is talking about.
http://bible.crosswalk.com/Lexicons/Hebrew/heb.cgi?number=06026&version=kjv