That responsibility is to extend to their physical and spiritual concerns. It begins with the procreative process. Christian men recognize the unique privilege God gives them to bring children into the world. For that reason a man will first seek to bring children into the world through the institution of marriage as it was ordained by God. A man will also recognize that should the physical relationship between a man and woman be blessed by God with a child the responsibility begins immediately to care for the child's physical and spiritual well-being.
Christian men enter into the sexual relationship assuming all responsibilities that come with it.
While the laws of the land prevent him from vetoing a decision for abortion he will nevertheless conduct his responsibility by doing what he can legally to protect a child's life. That may include changes in career or living arrangements in order to care for this new responsibility. If the child was conceived outside of he bonds of marriage a father may encourage the mother to consider such options that would be best for the child under the direction of Gods Word. Such options may include marriage or adoption. A Christian's responsibility is first to be a light shining in a dark world.