'Purchased' in the Bible

Now this man purchased a field with the reward of iniquity; and falling headlong, he burst asunder in the midst, and all his bowels gushed out.

But Peter said unto him, Thy money perish with thee, because thou hast thought that the gift of God may be purchased with money.

Take heed therefore unto yourselves, and to all the flock, over the which the Holy Ghost hath made you overseers, to feed the church of God, which he hath purchased with his own blood.