Albert Barnes' Notes on the Whole Bible - Romans 8:30
Moreover ... - In this verse, in order to show to Christians the true consolation to be derived from the fact that they are predestinated, the apostle states the connection between that predestination and their certain salvation. The one implied the other.Whom he did predestinate - All whom he did predestinate.Them he also called - Called by his Spirit to become Christians. He called, not merely by an external invitation, but in such a way as that they in fact were justified. This cannot refer... read more
The Pulpit Commentary - Romans 8:29-30
Yes, called according to his purpose; here is a further ground of hopeful assurance. For his having called us to be Christians at all, and justified us through faith, shows that it was his eternal purpose in so calling us, to conform us to the image of his Son, that he might be the Firstborn among many brethren; and that so we, being thus made his brethren, might inherit with him. In short, his having preordained us to our present state of salvation carries with it his preordaining us also to... read more