Heart
The heart means love. A good heart means love to the Lord and to the neighbor, while a hard or stony heart means the love of self or the world -- riches and things. When the psalmist asks the Lord to search his heart, he wants the Lord to see what it is that he loves. And we are what we love. What we eat may form our earthly body, but it's only temporary, what we love forms our spiritual body, beautiful or ugly as we have chosen. It's interesting to note that the first multi-cellular motion of our embryo is the pulsating that starts in a twist of blood vessel that is to become our heart, and the last motion of our natural body is our heartbeat. It is there for all of our natural life. And of course there is a beating heart in our spiritual bodies when we come to put them on.
Zechariah 9:10-11
10
I will cut off the chariot from Ephraim, and the horse from Jerusalem; and the battle bow will be cut off; and he will speak peace to the nations: and his dominion will be from sea to sea, and from the River to the ends of the earth.
11
As for you also, because of the blood of your covenant, I have set free your prisoners from the pit in which is no water.
