At this time in American history, (this) is one of the most powerful sentences a person can speak: “I do not want a child at this time.” It's powerful, because in a world without God, and without submission to His will, the will – the “want” – of a mother has become the will of a god. I say it carefully and calmly and sadly: Our modern, secular, God-dethroning culture has endowed the will (the “want”) of a mother not just with sovereignty over her child, but with something vastly greater. We have endowed her will with the right and the power to create human personhood. When God is no longer the Creator of human personhood, endowing it with dignity and rights in His own image, we must take that role for Him, and we have vested it in the will of the mother. She creates personhood.
John Piper