They are the descendants one of another; and Allah is the All Hearing, the All Knowing.
Tafsir:
The Chosen Ones Among the People of the Earth
Allah states that He has chosen these households over the people of the earth. For instance, Allah chose Adam, created him with His Hand and blew life into him. Allah commanded the angels to prostrate before Adam, taught him the names of everything and allowed him to dwell in Paradise, but then sent him down from it out of His wisdom. Allah chose Nuh and made him the first Messenger to the people of the earth, when the people worshipped idols and associated others with Allah in worship. Allah avenged the way Nuh was treated, for he kept calling his people day and night, in public and in secret, for a very long time. However, his calling them only made them shun him more, and this is when Nuh supplicated against them. So Allah caused them to drown, and none among them was saved, except those who followed the religion that Allah sent to Nuh. Allah also chose the household of Ibrahim, including the master of all mankind, and the Final Prophet, Muhammad, peace be upon him. Allah also chose the household of `Imran, the father of Marym bint `Imran, the mother of `Isa, peace be upon them. So `Isa is from the offspring of Ibrahim, as we will mention in the Tafsir of Surat Al-An`am, Allah willing, and our trust is in Him.