A Chain in Romans 8:29-30

In Romans 8:29-30 there is a chain, a sequence beginning with foreknowledge: all whom God foreknew He predestined. “And those whom He predestined He also called, and those whom He called He also justified, and those whom He justified He also glorified.” It is clear that the word “called” here is not referring to the external call of the gospel, which goes out to everyone. For not all who are externally called are justified. Therefore, this text is about the internal call, the work of the Holy Spirit that effectually changes the heart from spiritual death to spiritual life. The effectual call of the Holy Spirit brings to pass in our hearts what God purposed to do from the foundation of the world. All who have been predestined are called effectually by the Holy Spirit; all who are called by the Holy Spirit are justified; and all who are justified are glorified.

Adapted from Everyone's a Theologian: An Introduction to Systematic Theology by R.C. Sproul