If you have not received Jesus Christ, then you are not a child of God.

John 1:12 But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name:

Colossians 2:6 As ye have therefore received Christ Jesus the Lord, so walk ye in him:

Acts 11:1 And the apostles and brethren that were in Judaea heard that the Gentiles had also received the word of God.

1 Corinthians 15:3-4 For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures; And that he was buried, and that he rose again the third day according to the scriptures:

1 Thessalonians 2:13 For this cause also thank we God without ceasing, because, when ye received the word of God which ye heard of us, ye received it not as the word of men, but as it is in truth, the word of God, which effectually worketh also in you that believe.

2 Thessalonians 2:10 And with all deceivableness of unrighteousness in them that perish; because they received not the love of the truth, that they might be saved.

Hebrews 10:26 For if we sin wilfully after that we have received the knowledge of the truth, there remaineth no more sacrifice for sins,