This is a quotation from Srimad-Bhagavatam (3.5.26). This verse tells how the living entities come in contact with material nature. Just as a woman cannot beget children without uniting with a man, material nature cannot beget living entities without being in union with the Supreme Personality of Godhead. There is a history of how the Absolute Lord becomes the father of all living entities. In every system of religion, it is accepted that God is the supreme father of all living entities. According to Christianity, the supreme father, God, provides the living entities with all of life's necessities. Therefore they pray, "Give us this day our daily bread." Any religion that does not accept the Supreme Lord as the absolute father is called kaitava-dharma, or a cheating religion. Such religious systems are rejected in Srimad-Bhagavatam (1.1.2): dharmah projjhita-kaitavo 'tra. Only an atheist does not accept the omnipotent supreme father. If one accepts the omnipotent supreme father, he abides by His orders and becomes a religious person.