⁶ Because you are his sons, God sent the Spirit of his Son^(A) into our hearts,^(B) the Spirit who calls out, “Abba,^[a] Father.”^(C)

¹⁸ No one has ever seen God,^(A) but the one and only Son, who is himself God and^[a](B) is in closest relationship with the Father, has made him known.