Why can Paul say, 'If God be for us, who can be against us?'
Paul can say this because all three persons of the Trinity are constantly working on our behalf. The Holy Spirit intercedes for us, and Jesus Christ serves as our advocate with the Father, so no opposition can ultimately prevail against those God supports.
Les explains that in Romans chapter 8, the Holy Spirit is interceding on behalf of believers, and all three persons of the Trinity are involved in our prayer line, constantly working for us (s258-s268). He also points to I John 2:1, where if any man sin, we have an advocate with the Father, Jesus Christ the Righteous (s270-s273). Christ is there 24 hours a day, every day of the year, hearing each believer individually (s274-s290). This constant intercession and advocacy is why Paul can confidently write, 'If God be for us, who can be against us?'
What shall we then say to these things? If God be for us, who can be against us?
More Questions
What does 'if God be for us, who can be against us' mean in Romans 8:31?
In Romans 8:31, 'God for us, who against us?' means that believers can rest assured that no matter what people or authorities do to their physical flesh, they can never touch the invisible, eternal part of them, because that part is in God's hands.