Galatians 3:26-29
v26: Those who accept Jesus "as their Lord and Saviour, and depend only on him for justification and salvation" are God's children "and have a right to all the privileges of children" including a closer and freer access to God than Israel in the Old Testament had.
v27-29: "All who sincerely believe in Christ, from whatever nation, sex, or condition, are accepted by him and become children of God through faith in him."