Therefore, because you are sons, God has sent the Spirit of his Son into your hearts, crying out: "Abba, Father.
Other versions
King James Version
And because ye are sons, God hath sent forth the Spirit of his Son into your hearts, crying, Abba, Father.English Standard Version
And because you are sons, God has sent the Spirit of his Son into our hearts, crying, "Abba! Father!"New International Version
Because you are sons, God sent the Spirit of his Son into our hearts, the Spirit who calls out, "Abba, Father."