A.W. Pink: Christ purchased heaven for His people

The "righteousness of Christ" which is imputed to the believer consists of that perfect obedience which He rendered unto the precepts of God’s Law and that death which He died under the penalty of the law. … Should any one object to the idea of Christ "purchasing" Heaven for His people, he may at once be referred to Ephesians 1:14, where Heaven is expressly designated "the purchased possession." -A.W. Pink, Justification (ch. 5)