Holiness comes not of blood...

Holiness comes not of blood—parents cannot give it to their children: nor yet of the will of the flesh—man cannot produce it in himself: nor yet of the will of man—ministers cannot give it you by baptism. Holiness comes from Christ. It is the result of vital union with Him. It is the fruit of being a living branch of the True Vine.  

-J.C. Ryle