Galatians 3:26
26 So in Christ Jesus you are all children of God through faith,
Galatians 4:6-7
6 Because you are his sons, God sent the Spirit of his Son into our hearts, the Spirit who calls out, “Abba, Father.” 7 So you are no longer a slave, but God’s child; and since you are his child, God has made you also an heir.