There is a very simple answer to the question, “Did God choose some and not others?” This question was even being asked during the time of the Apostles in the Bible. The answer is no. As St. Paul says to St. Timothy in 1 Tim 2:1-7
“1) First of all, then, I urge that supplications, prayers, intercessions, and thanksgivings be made for all people, 2) for kings and all who are in high positions, that we may lead a peaceful and quiet life, godly and dignified in every way. 3) This is good, and it is pleasing in the sight of God our Savior, 4) who desires all people to be saved and to come to the knowledge of the truth. 5) For there is one God, and there is one mediator between God and men, the man Christ Jesus, 6) who gave himself as a ransom for all, which is the testimony given at the proper time. 7) For this I was appointed a preacher and an apostle (I am telling the truth, I am not lying), a teacher of the Gentiles in faith and truth.”
The question of, “Who needs the Gospel?” According to John 3:16 the answer is, “The whole world!” Will all people hear and believe? Also, the answer is, “no”. We do not get to say who is saved and who is damned. The Christian Church was established in order that the Good news of Jesus would be preached to, “All Nations” (See: Matthew 28:19).
I might also refer you to Mark 16:16 where our Lord says, “Whoever believes and is Baptized, shall be saved, but whoever does not believe, will be condemned.” In the end, it isn’t about, “These people are saved,” or, “Those people are saved.” In the end, it is where the Word of God has changed the hardened hearts of ANYBODY, they have the hope of life everlasting.
I hope this helped.
In His service and in yours,
–Rev. Brandt Hoffman
Zion Lutheran Church (LCMS)