Christians need to get a proper understand of Divine Election (choosing of individuals by God) from the Bible itself, not from the misrepresentation of election by men. So what do we see?
1. God does indeed elect specific individuals for specific jobs or ministries. We see this throughout Scripture, the final election being that of the apostle Paul (who was originally an enemy of Christ and Christians, but then became the greatest apostle of Christ).
2. God elected Abraham, Isaac, and Jacob in order to give them the Abrahamic Covenant (which would be an everlasting covenant). Isaac was elected over Ishmael, and Jacob was elected over Esau. This is because through divine foreknowledge, God knew that Isaac and Jacob would be men of faith in following Abraham, the *father* of all who believe God. On the other hand Ishmael and Esau would become the progenitors of the enemies of Israel.
3. God elected a specific nation to represent Him on earth, and to show mankind the meaning of true worship and righteousness. That nation was Israel (the twelve tribes). And even though Messiah would come out of the tribe of Judah, Israel by and large failed God. Now if divine election was for salvation, then each and every Israelite and Jew would have been saved in spite of themselves. This is the most compelling evidence that God elects no one for salvation or damnation.
4. Finally God elects (via divine foreknowledge) each one who obeys the Gospel, and believes on the Lord Jesus Christ , in order to be "conformed to the image of His Son" for eternity.
What this means is that God takes vile sinners who believe, justifies them by His grace through their faith, sanctifies them with the gift of the Holy Spirit, continues to sanctify them by the power of the indwelling Spirit, and eventually glorifies and perfects them so that they literally resemble Christ -- physically, morally, and spiritually [at which point the indwelling sin nature ("the old man") is eradicated]. This transformation takes place at the Resurrection/Rapture, which is also an instantaneous translation to Heaven.
This is summarized in Romans 8:29,30:
For whom he did foreknow, he also did predestinate to be conformed to the image of his Son, that he might be the firstborn among many brethren. Moreover whom he did predestinate, them he also called: and whom he called, them he also justified: and whom he justified, them he also glorified.