Question: "How are predestination and election connected with foreknowledge?"
Answer: Certainly, since God knows everything, it would have been possible for God to base His predestination and election of individuals upon His foreknowledge of the future. In fact, that is the exact position that many Christians believe, as it is the Arminian view of predestination. The problem is that it really is not what the Bible teaches about predestination, election, and foreknowledge. In order to understand why the view that “God made His choice based on merely knowing the future” is not what the Bible teaches, let’s first consider a couple of verses that speak to the reason God elected or predestined people to salvation.
Ephesians 1:5 tells us that God “predestined us to be adopted as his sons through Jesus Christ, in accordance with his pleasure and will.” According to this verse, the basis of our being predestined is not something that we do or will do, but is based solely on the will of God for His own pleasure. As Romans 9:15-16 says, “I will have mercy on whomever I will have mercy, and I will have compassion on whomever I will have compassion. It does not, therefore, depend on man's desire or effort, but on God's mercy.” Similarly, Romans 9:11 declares regarding Jacob and Esau, “Yet, before the twins were born or had done anything good or bad—in order that God's purpose in election might stand: not by works but by him who calls.” Then again in Ephesians 1:11 we see that people are “chosen, having been predestined according to the plan of him who works out everything in conformity with the purpose of his will.” From these and many others passages, we see that Scripture consistently teaches that predestination or election is not based upon something that we do or will do. God predestined people based on His own sovereign will to redeem for Himself people from every tribe, tongue, and nation. God predetermined or predestined this from before the foundation of the world (Ephesians 1:4) based solely on His sovereign will and not because of anything that He knew the people would do.
But what about Romans 8:29 where it says that those “He foreknew, He also predestined”? Doesn’t that seem to say that predestination is based upon the foreknowledge of God? Of course, the answer is yes, it does teach that predestination is based on the foreknowledge of God. But what does the word foreknowledge mean? Does it mean “based upon God’s knowledge of the future,” meaning God simply looks down through the future and sees who will believe the gospel message and then predestines or elects them? If that were the case, it would contradict the verses above from Romans and Ephesians that make it very clear election is not based on anything man does or will do.
Fortunately, God does not leave us to wonder about this issue. In John 10:26, Jesus said, “But you do not believe because you are not of My sheep.” The reason some people believe is that they belong to God. They were chosen for salvation, not based on the fact that they would one day believe, but because God chose them for “adoption as sons in Christ Jesus” before they ever existed. The reason one person believes and another person does not is that one person has been adopted by God and the other has not. The truth is that the word foreknew in Romans 8:29 is not speaking of God's knowing the future. The word foreknowledge is never used in terms of knowing about future events, times or actions (God’s omniscience). What it does describe is a predetermined relationship in the knowledge of God whereby God brings the salvation relationship into existence by decreeing it into existence ahead of time.
The word know is sometimes used in the Bible to describe an intimate or personal relationship between a man and a woman. In a similar sense, before God ever created the heavens and earth, and a long time before we were ever born, God knew His elect in a personal way and chose them to be His sheep, not because they would someday follow Him but in order to guarantee that they would follow Him. His knowing them and choosing them is the reason they follow Him, not the other way around. The issue really is not whether or not God knows who will believe, but why some believe and others do not. The answer to that is God chooses to have mercy on some and others He leaves in their sinful rebellion.
The following quote by John Murray is excellent in dealing with this issue: "Even if it were granted that ‘foreknew’ means the foresight of faith, the biblical doctrine of sovereign election is not thereby eliminated or disproven. For it is certainly true that God foresees faith; He foresees all that comes to pass. The question would then simply be: whence proceeds this faith, which God foresees? And the only biblical answer is that the faith which God foresees is the faith He himself creates (cf. John 3:3-8; 6:44, 45, 65; Eph. 2:8; Phil. 1:29; 2 Peter 1:2). Hence His eternal foresight of faith is preconditioned by His decree to generate this faith in those whom He foresees as believing."