'Purchased' in the Bible

They sang a new song: "You are worthy to take the scroll and open its seals, because you were slaughtered. With your blood you purchased people for God from every tribe, language, people, and nation.

And they *sang a new song before the throne and before the four living creatures and the elders; and no one could learn the song except the one hundred and forty-four thousand who had been purchased from the earth.

These are the ones who have not been defiled with women, for they have kept themselves chaste. These are the ones who follow the Lamb wherever He goes. These have been purchased from among men as first fruits to God and to the Lamb.