"I will give thanks to Thee, O Lord my God, with all my heart..."
Psalm 86:12

Scripture has much to say concerning the heart of man, in fact, there are
hundreds of references listed in "Strong's Exhaustive Concordance".  We
know, therefore, that the heart condition is very important.
"Vine's Expository Dictionary" says, "...the heart is used figuratively for
the hidden springs of the personal life."  And,
"Hastings' Bible Dictionary" says, "The heart, as lying deep within,
contains 'the hidden man'...It represents the true character, but conceals
it." I would like to share just a few verses for us to ponder.  Again, I
urge you to read them in context.

"...For God sees not as man sees, for man looks at the outward appearance,
but the Lord looks at the heart."  1 Samuel 16:7

"As for you, my son Solomon, know the God of your father, and serve Him
with a whole heart and a willing mind; for the Lord searches all hearts, and
understands every intent of the thought.  If you seek Him, He will let you
find Him..."  1 Chronicles 28:9

"If we had forgotten the name of our God,
Or extended our hands to a strange god;
Would not God find this out?
For He know the secrets of the heart."  Palm 44:20-21

"...A broken and a contrite heart, O God, Thou wilt not despise."
Psalm  51:17

The following Scripture is one that we not only should, but MUST attend to
continually,
"Watch over your heart with all diligence,
For from it flow the springs of life."  Proverbs 4:23

In Jeremiah 17 we find what our hearts are really like, but we who fear
(reverence) the Lord can depend upon Him to reveal, convict, convince and
cleanse our hearts.
"The heart is more deceitful than all else
And is desperately sick;
Who can understand it?
I, the Lord, search the heart,
I test the mind,
Even to give to each man according to his ways,
According to the results of his deeds."  Jeremiah 17:9-10

Keeping in mind Proverbs 4:23 and Jeremiah 17:9-10 let's look at what
Jesus said,
"The good man out of the good treasure of his heart brings forth what is
good; and the evil man out of the evil treasure brings forth what is evil;
for his mouth speaks from that which fills his heart."  Luke 6:45 (Also see,
Matthew 12:34-35 and 15:17-19)

Remember, Jesus said,
"Blessed are the pure in heart, for they shall see God."  Matthew 5:8

So we join in the Psalmist's prayer in Psalm  139:23-24
"Search me, O God, and know my heart;
Try me and know my anxious thoughts;
And see if there be any hurtful way in me;
And lead me in the everlasting way."

Give praise and thanks to our gracious God and Savior for His goodness
unto us.  He is worthy of it all.

"I will give thanks to the Lord with all my heart;
I will tell of all Thy wonders.
I will be glad and exult in Thee;
I will sing praise to Thy name, O Most High."  Psalm 9:1-2