Parallel
Galatians 4:7
Robinson-Pierpont Byzantine Textform · Berean Standard Bible
Ὥστε οὐκέτι εἶ δοῦλος, ἀλλ’ υἱός· εἰ δὲ υἱός, καὶ κληρονόμος θεοῦ διὰ χριστοῦ.
So you are no longer a slave, but a son; and since you are a son, you are also an heir through God.