1 Corinthians 6:20God created the universe for his glory. Every rock, every tree, every molecule of oxygen gas, every electron in every atom. Everything that exists was created by God to glorify him and to express his glory.
You were bought at a price. Therefore glorify God with your bodies.
And yet we see in Genesis 3 that we sinned. We rebelled against God and stuffed it up. Adam and Eve ate the fruit when he told us not to, and every single human being since then has also rebelled against God. We no longer give him the glory, instead we try to take it all ourselves.
But instead of destroying us like we deserved, God made a promise to Adam and Eve. Genesis 3:15 -
And I will put enmitybetween you and the woman,and between your offspring and hers;he will crush your head,and you will strike his heel.”God promised from the beginning to save us, to provide someone to crush Satan, sin and death. That's what Paul means when he says we were brought with a price. Jesus, who was eternally God, became a man. He lived among us, yet he did not sin, and he suffered and died in our place. He took God's wrath for those who turn to him - the punishment that we deserve because we sin against him and he paid for it in full. As a result we can be saved, and we can fulfil our purpose: we can glorify God again.
Why do we exist? Isn't that one of the biggest questions asked? We exist to glorify God, and we do that best by being satisfied in him, by being thankful and by praising him for his goodness.
If you are a Christian then you have been brought at a price - God (Jesus) became a man and died in your place. Then he rose again and now he sits at God's (God the Father's) right hand, interceding for us, still God and still retaining his humanity. We have been brought with a price that we cannot even begin to fathom. If that's true then the only response should be thankfulness which leads to obedience - glorifying God with your body.
Do you Glorify God in all you do?
Soli Deo Gloria.