Read the verse below:
II Thessalonians 2:13,14 – “But we are bound to give thanks alway to God for you, brethren beloved of the Lord, because God hath from the beginning chosen you to salvation through sanctification of the Spirit and belief of the truth: 14 Whereunto he called you by our gospel, to the obtaining of the glory of our Lord Jesus Christ.”
According to this verse He chose us to be saved because he called us by His Gospel, we believed the truth and were made Holy by the Spirit.
II Timothy 1:9 – “Who hath saved us, and called us with an holy calling, not according to our works, but according to his own purpose and grace, which was given us in Christ Jesus before the world began,”
He saved us and called us not by our works but according to his own purpose and grace, which were given to us in Christ before the world began.
In other words, off in eternity past, God could see who would accept Christ, who would have ears to hear, and would believe on the Lord Jesus Christ. Salvation was given to them in eternity past.
The fact that God chooses us to salvation does not make us more special than others. It simply means that He, in His omniscience, knew who would accept and believe the message of the Gospel and they are the “chosen in Christ.”
The word we, as humans, need to keep in mind is evangelize. We are not “all knowing” therefore our job is to propagate His Gospel and let it enter into the ears of those that God knows will believe.