But as many as received Him, to them He gave the right to become children of God, to those who believe in His name: who were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God.
There is a false belief that every human being is a son or daughter of God. The Bible is very clear on this and sets the condition required to become children of the Most High. We are his workmanship, created from His hands and His intention is to have with us a relationship in which He is the Father and we are His children. However, the spiritual relationship with God is not acquired at birth or inherited from our biological parents.
In John 1:12-13 clearly states that the right to become children of God is obtained when we receive the Word made flesh, the only begotten of the Father. So the first step we must take to adoption as children is receiving Jesus Christ. The Bible affirms in Ephesians 1:5: having predestined us to adoption as sons by Jesus Christ to Himself, according to the good pleasure of His will. And again in Galatians 3:26: For you are all sons of God through faith in Christ Jesus.
The children of God are led by His Spirit, as Romans 8:14 says: For as many as are led by the Spirit of God, these are sons of God. Being led by the Spirit of God means not live according to the flesh, but living in the spirit. Romans 8:16 continues: The Spirit Himself bears witness with our spirit that we are children of God. Once we receive Jesus Christ into our hearts, we become temples of the Holy Spirit, who guides us and reassures us as children of God.
Philippians 2:15 says the characteristics of the children of God: that you may become blameless and harmless, children of God without fault in the midst of a crooked and perverse generation, among whom you shine as lights in the world. As children of God we are called to be the light of the world and the salt of the Earth. We have to make a difference and not get carried away by the current or echo the things that displease God.
Being a child of God is an undeserved privilege. Only the love of God allows us to be part of His family. It’s not about what we can do, but what He has already done. In 1 John 3:1-2 we read: Behold what manner of love the Father has bestowed on us, that we should be called children of God! Therefore the world does not know us, because it did not know Him. Beloved, now we are children of God; and it has not yet been revealed what we shall be, but we know that when He is revealed, we shall be like Him, for we shall see Him as He is.
This manifestation of the sons of God that Paul speaks in Romans 8:19-21: For the earnest expectation of the creation eagerly waits for the revealing of the sons of God. For the creation was subjected to futility, not willingly, but because of Him who subjected it in hope; because the creation itself also will be delivered from the bondage of corruption into the glorious liberty of the children of God. God bless you.