Francis the ‘ignoramus’ makes it up as he goes along.
“First of all, He gave us His 'DNA', that is, He made us children, created us in His image, in His image and likeness, like Him. And when one makes a child, he cannot take it back: the son is made, he exists. And whether or not he carries resembles the father, he is a son; he has received his identity.”
— The Baltimore Catechism —
Q. 331. Cannot we also be called the Children of God, and therefore His sons and daughters?
A. We can be called the Children of God because He has adopted us by His grace or because He is the Father who has created us; but we are not, therefore, His real Children; whereas, Jesus Christ, His only real and true Son, was neither adopted nor created, but was begotten of His Father from all eternity.
Q. 624. Why, then, are we the heirs of Christ?
A. We are the heirs of Christ because at His death we came into the possession of God's friendship, of grace, and of the right to enter heaven, provided we comply with the conditions Our Lord has laid down for the gaining of this inheritance.
— The Holy Bible —
“Not as though the word of God hath miscarried. For all are not Israelites that are of Israel: Neither are all they that are the seed of Abraham, children; but in Isaac shall thy seed be called: That is to say, not they that are the children of the flesh, are the children of God; but they, that are the children of the promise, are accounted for the seed.”
NOTE: All are not Israelites — Not all, who are the carnal seed of Israel, are true Israelites in God's account: who, as by his free grace, he heretofore preferred Isaac before Ismael, and Jacob before Esau, so he could, and did by the like free grace, election and mercy, raise up spiritual children by faith to Abraham and Israel, from among the Gentiles, and prefer them before the carnal Jews.
“For you are all the children of God by faith, in Christ Jesus. For as many of you as have been baptized in Christ, have put on Christ. There is neither Jew nor Greek: there is neither bond nor free: there is neither male nor female. For you are all one in Christ Jesus. And if you be Christ' s, then are you the seed of Abraham, heirs according to the promise.”