When we are born again, our spirit receives an overhaul just like a car does. It’s the same body, but the engine is cleansed thoroughly by the blood of Jesus Christ and we are created anew. And all things of the spirit are from God. When it comes to the body, every cell in the body (except brain cells and some other cells), is replaced by a new cell at least once in 7 years. So, every 7 years, even unsaved people have new bodies. Then what is it that does not change upon salvation? It’s our soul – or mind. That is why the Bible asks us to proactively renew our mind. And what will we renew it to? To the Word of God – the Bible. That is the equivalent of regular maintenance of your car – servicing, refuelling, keeping it running to prevent it from getting rusty or cold.
So let us give our car the maintenance it needs and deserves. Our mind needs and deserves good maintenance because the one who lives in us is perfect. If a guest visited your home, you would treat him like a king. But what if a king made your home his abode? Will you treat him like you treat your family members (!!)? Or will you treat him like who he is and also begin treating your family members like they are kings too? Truly I say to you – if you are born again, then your family is a partaker of the promises of Acts 16:31 and the subsequent verses, and also other verses with promises. So you and they are kings.