our father
Here the reference is to relationship through creation, rather than through faith, as in (Acts 17:28); (Acts 17:29).
( See Scofield) - (Acts 17:29).
Related Commentaries of Isaiah 64:8
Isaiah 64:8
8 But now, O LORD, thou art our father; we are the clay, and thou our potter; and we all are the work of thy hand.