Galatians 4:7

So [now], you are no longer a slave but a child, and since you are a child, you also will receive an inheritance through [the blessings of] God.

Romans 8:16-17

The Holy Spirit Himself bears testimony [along] with our [human] spirit that we are the children of God.

1 Corinthians 3:21-23

So, no one should boast about [the knowledge or position of] people. For all things belong to you,

2 Corinthians 6:16-18

And what agreement is there between a temple of God and idols? For we are a temple of the living God, just as God said [Lev. 26:12], "I will live in them and walk among them [i.e., among His people]; and I will be their God and they will be my people."

Galatians 3:26

For all of you are children of God through your faith in Christ Jesus [as God's only Son].

Galatians 3:29-2

And if you belong to Christ, then you are [truly] Abraham's seed [i.e., his spiritual descendants] and thereby [you will] inherit what was promised to him [i.e., God's blessings].

Galatians 4:5-6

so that He could buy back [from Satan] those who were [still] under [obligation to] the law of Moses, and that we could become adopted children.

Galatians 4:31-1

Therefore, brothers, we [Christians] are not the [spiritual] children of the slave woman [Hagar] but of the free woman [Sarah].

Revelation 21:7

The person who has victory [in the Christian life] will inherit these things, and I will be his God and he will be my child.

Treasury of Scripture Knowledge

Summary

Wherefore thou art no more a servant, but a son; and if a son, then an heir of God through Christ.

Bible References

Thou

Galatians 4:1
But as long as the person who has an inheritance coming to him is a child, he is really no better off than a slave, even though he himself is [rightfully] entitled [to the inheritance].
Galatians 5:1
Christ set us free [from condemnation under the law of Moses], so we could stay free! Remain where you are then, and do not get tangled up again in the enslaving harness [of the law of Moses].

If

Galatians 3:29
And if you belong to Christ, then you are [truly] Abraham's seed [i.e., his spiritual descendants] and thereby [you will] inherit what was promised to him [i.e., God's blessings].
Romans 8:16
The Holy Spirit Himself bears testimony [along] with our [human] spirit that we are the children of God.