He must secure her environment. He must be present to comfort and encourage her. He must be in authority for his wife to be secure. If her caregivers undermine or disregard his authority, his wife cannot feel secure in his provision of security. Hospital personnel are seldom subject to the husband's efforts to provide security.
Midwives can also be guilty of interfering with a husband's authority over the birth.
Such midwives hinder the birth process by subtly undermining the woman's security. Remember that security that prevents adrenaline, allowing her to labor without unbearable pain. A husband provides security by making his wife's environment safe to her. These are very practical measures such as lowering the lights, speaking in quiet voices, turning off the phone ringer, asking extraneous people to wait elsewhere. Making a woman feel nurtured makes her feel secure.