Romans 8 is about Our Security in Christ

In handling the topic of the Holy Spirit...the apostle relates it to his other overarching theme in the chapter, namely the absolute security of the children of God. According to Charles Hodge, ‘the whole chapter is a series of arguments, most beautifully arranged, in support of this one point’. And Dr. Martyn Lloyd-Jones agrees with him. ‘I make bold to assert that the great theme of chapter 8 is not sanctification...The great theme is the security of the Christian.’

--John Stott