Against all human hope, God promises descendants to Abraham, as the fruit of faith and of the power of the Holy Spirit.[68] In Abraham's progeny all the nations of the earth will be blessed. This progeny will be Christ himself,[69] in whom the outpouring of the Holy Spirit will "gather into one the children of God who are scattered abroad."[70] God commits himself by his own solemn oath to giving his beloved Son and "the promised Holy Spirit . . . [who is] the guarantee of our inheritance until we acquire possession of it."[71]