Matthew 22:37-38 (NIV)
37 Jesus replied: “‘Love the Lord your God with all your heart and
with all your soul and with all your mind.’ 38 This is the first
and greatest commandment.
This is the first and greatest commandment. I think that it's pretty ironic that nobody can answer what this means, considering the biggest forgivable sin is probably breaking the first and most important commandment.
1 John 5:3 (NIV)
In fact, this is love for God: to keep his commands. And his commands
are not burdensome,
The Bible tells us that Love for God is obedience to Him.
With all your heart
Romans 2:15 (NIV)
They show that the requirements of the law are written on their
hearts, their consciences also bearing witness, and their thoughts
sometimes accusing them and at other times even defending them.)
The commandments and laws of God are no longer obeyed by one nation, but instead these things are written on the individual believers hearts. So that each believer may be governed by the spirit and not by the flesh.
To love God with all of your heart is to allow all of His laws to govern you.
Matthew 5:28 (NIV)
But I tell you that anyone who looks at a woman lustfully has already
committed adultery with her in his heart.
With all of your mind
Romans 8:6 (NIV)
The mind governed by the flesh is death, but the mind governed by the
Spirit is life and peace.
We are also told that we need to think about good things and not evil things. We are to focus our entire mind on the things that please God. Not planning evil against a brother or doing things in private.
With all of your Strength
1 John 3:18 (NIV)
Dear children, let us not love with words or speech but with actions
and in truth.
God tells us that we need not just SAY that we are Christian, but actually BE Christian. The parable of the two farmers sons is the perfect example of this. Jesus gives two examples of Children that were told to go work in the field. On said ok but didn't go. The other said no, but then eventually went.
Jesus asks the people, Who actually obeyed? The one that DID or the one that DIDN'T? It's an obvious answer, the son that DID is the son that DID.
To love God with all of your strength is to DO as He has asked you to do.