"Therefore, brothers, be all the more diligent to confirm your calling and election, for if you practice these qualities you will never fall."
2 Peter 1:10 ESV
Even before we are born we know that we are already chosen by God (John 15:16). He knows who will be saved, even before the creation of this world (Ephesians 1:4). All we have to do is prove, that we are worthy of the salvation, calling end election we have. Those qualities enumerated by Peter on the prior verses (2 Peter 1: 9) must be lived-out by each and every man/woman professing to be CHRISTIANS.By that we can prove that we are really followers of God. For we are the chosen people that will testify to the world on the light which called us out of the darkness ( 1 Peter 2:9).