Romans 8:14-15 ESV - For all who are led by the Spirit of God are sons of God. 15 For you did not receive the spirit of slavery to fall back into fear, but you have received the Spirit of adoption as sons, by whom we cry, “Abba! Father!”
1 John 5:19 NLT - We know that we are children of God and that the world around us is under the control of the evil one.
Imagine living as a citizen of ancient Rome where the law gave fathers absolute and total authority over the family. This authority applied throughout the fathers’ lives and was not changed just because the children became adults. The children were vital to a Roman family’s future. Because of this, Roman adoption would often occur as one father would transfer his role and power over his child to another man. Adopting adults (or nearly adults) was the main method. Consider the view of the Roman adoption principles that the Apostle Paul used to teach spiritual reality in Christ to the church at Rome. The old life of the adopted son was obliterated from official record - as if he had never lived before. If your life was filled with debts you could never pay, regrets you could never fix, a criminal record you could never expunge, does getting a clean slate and a fresh start in a new life sound like a good deal? Everyone who has reached a stage of accountability before God has a similarly hopeless record of debts, regrets, and moral crimes. In Christ, God offers not just a transaction to eliminate our shameful record but a RELATIONSHIP - through adoption - that eliminates our shameful record. The good news is that the Spirit of Adoption is also the same Spirit that gives us a new nature - so we will have holy desires cultivated within us by the Holy Spirit who lives in us.
John 3:3-8 NIV - Jesus replied, “Very truly I tell you, no one can see the kingdom of God unless they are born again.” 4 “How can someone be born when they are old?” Nicodemus asked. “Surely they cannot enter a second time into their mother’s womb to be born!” 5 Jesus answered, “Very truly I tell you, no one can enter the kingdom of God unless they are born of water and the Spirit. 6 Flesh gives birth to flesh, but the Spirit gives birth to spirit. 7 You should not be surprised at my saying, ‘You must be born again.’ 8 The wind blows wherever it pleases. You hear its sound, but you cannot tell where it comes from or where it is going. So it is with everyone born of the Spirit.”