Verses 1 and 2:
My heart is where it all begins - my selfish ambitions are first cooked inside here. What I need is some sort of transplant. I need someone to go inside of me and scrub out all that needs to be purified so that I can finally be righteous.
What enters the mind comes from the heart, and so this is the next area of myself that needs cleaning. I've heard it said that the devil moves at the speed of thought, and so every single time we sin it is because of a thought that had been placed inside our minds that we would act on. This is precisely why I need my mind cleaned out - so I won't stumble into another one of Satan's traps.
Verse 3 and 4:
I find that I am stubborn in the sense that I am convinced I can do it all on my own - and when I do accomplish something, it's because of my strength and my might. Well, I was wrong. All that I have has come from Christ anyway so I am asking Him to take what I think is mine away and feed me a fat piece of Humble Pie.
What my hands have held in their possession to make myself feel more successful have really served as tools of sin as they have only been feeding my ego.
Verse 5:
This is the killer. All that I am and all that I have I am surrendering at the cross of Christ. My life that I had tried to live on my own is nothing compared to the one that Christ has for me. I have to lose my life in order to gain His righteousness, and that here is my plea.
Chorus:
Everything that I have has been given to me as a free gift from God. My pride led the attempt to seek my own satisfaction to victory, but praise be to God that He sent His Son to grant me true satisfaction - eternal satisfaction.
Overall:
This song is a plea for righteousness. It is admitting that I can never make it on my own, because I always find myself giving the parts of my body as instruments of sin. The only way to finally receive this righteousness is through faith in Christ, and that is why I am asking Him to replace all of myself with all of Him. It's a difficult thing to admit that our own hearts, thoughts, strength, hands, and lives cannot achieve even a hint of redemption without the grace that God has to offer us through faith in Christ, but the humility that breeds redemption is waiting for us all to open up and receive it.
Romans 3:10:
"As it is written: "There is no one righteous, not even one; there is no one who understands, no one who seeks God."
Romans 6:13:
"Do not offer the parts of your body to sin, as instruments of wickedness, but rather offer yourselves to God, as those who have been brought from death to life; and offer the parts of your body to him as instruments of righteousness."
1 Corinthians 10:5:
"We demolish arguments and every pretension that sets itself up against the knowledge of God, and we take captive every thought to make it obedient to Christ"
Matthew 10:39:
"Whoever finds his life will lose it, and whoever loses his life for my sake will find it."