Romans 8:9 You, however, are not in the flesh but in the Spirit, if in fact the Spirit of God dwells in you. Anyone who does not have the Spirit of Christ does not belong to him.
If you’re God’s, you’re God’s. If you’re not, you’re not. There is no in-between. There is no such thing as a part-time Christian. You are either in the flesh or in the spirit.
We’re all born once into the flesh. Our mothers carry us for 9 months and give birth to us, little tiny human infants. But to be of the Spirit requires a rebirth (John 3:6). When you claim the promises of God by being saved through faith in Jesus, you are born into the Spirit. Then, and only then, do you become part of God’s family.
It’s common to hear someone spoken of as a “child of God” and this is true in some regard. God did create every person who walks the earth, but they are not all His children. Only those who have been adopted are His. And those who are His are His forever. Are you His? Is the inheritance He’s promised yours to claim? Do you know Him as your Father?
God’s children live differently than the rest of the world. We’re not concerned with the things that burden the lost. We’re able to walk in a godly confidence because we know that the Lord is all-powerful and He is good. We’ve got what the world is looking for in all the wrong places. But there’s always more room in God’s family for another.