7:172 to 7:173

And (remember) when your Lord brought forth from the Children of Adam, from their loins, their seed (or from Adam’s loin his offspring) and made them testify as to themselves (saying): “Am I not your Lord?” They said: “Yes! We testify,” lest you should say on the Day of Resurrection: “Verily, we have been unaware of this.”  7:172

or lest you should say: “Our forefathers started the practice of shirk and we just followed, being their descendants. Will you then destroy us on account of following the sin committed by those wrongdoers?” 7:173

Meaning:-
Loin: the region of the sexual organs, especially when regarded as the source of erotic.
Offspring: children, sons and daughters, family.

Descendants: a person who is related to you and who lives after you, such as your child or grandchild, successor, disciple.
shirk (Arabic) : is the sin of practicing idolatry or polytheism, i.e. the deification or worship of anyone or anything other than the singular God i.e. Allah. Literally, it means ascribing or the establishment of “partners” placed beside God.
Wrongdoer: a person who behaves illegally or dishonestly; an offender.