'Chosen One' in the Bible

Unless the Lord had shortened the days, no flesh would have been saved; but for the sake of the chosen ones, whom he picked out, he shortened the days.

For there will arise false christs and false prophets, and will show signs and wonders, that they may lead astray, if possible, even the chosen ones.

Then he will send out his angels, and will gather together his chosen ones from the four winds, from the ends of the earth to the ends of the sky.