[126] For, virtue is, and will be, and has been in everything; which virtue perhaps is at times obscured among men by the want of opportunity, but which opportunity the minister of God again brings to light. Since Sarah, that is to say, prudence, brings forth a male child, flourishing, not according to the periodical seasons of the year, but according to those seasons and felicitous occasions which have no connection with time; for it is said, "I will surely return and visit thee according to the time of life; and Sarah, thy wife, shall have a son." [121]