For ye are all the children of God by faith in Christ Jesus.
Children - no longer children in years [paides], but х huioi (G5207)], 'sons,' and that, too, not merely sons of Abraham, but of God. Fully developed sons.
By faith in Christ, х Dia (G1223) tees (G3588) pisteoos (G4102)] - 'through the faith in Christ.' 'Ye all' (Jews and Gentiles alike) are no longer children requiring a tutor, but SONS walking at liberty.