'Spirit of God' in the Bible

But if the Spirit of God [truly] lives in your heart, you are not [being controlled] by the flesh, but by the Holy Spirit. But if any person does not have the Spirit of Christ [living in him], he does not belong to Christ.

But if the Spirit of God, who raised up Jesus from the dead, lives in your hearts, [then] that One [i.e., God] who raised up Christ Jesus from the dead, will restore life to your mortal bodies also, through [the power of] God's Spirit who lives in your hearts.

For all of those who are led by the Spirit of God are the children of God.