Compare chs. 3:5; 4:1; 6:1; 7:7; 9:14, where this common phrase introduces a contrary conclusion. Here and in ch. 9:30 it introduces one in harmony with the preceding argument.
These things.
That is, the things mentioned in the preceding verses, the revealed purpose of God and all the steps in its fulfillment. In view of these things, what conclusion should we draw in regard to the power of the Christian religion to sustain us in our trials?
If God be for us.
Or, “if God is for us.” There is no uncertainty about this, as the Greek construction clearly shows. Paul has already shown how God is on our side. God regards us as His sons (vs. 15-17) and has sent His Spirit to help us (v. 26), for it is His purpose to save us (vs. 28-30).
Who can be against us?
Or, “who is against us?” though in this case it seems more appropriate to supply the words “can be.” It is encouraging to recognize that, since God has purposed and is actively engaged in accomplishing salvation for believers, all our enemies are also His enemies (see Ps. 27:1; 118:6).