“It is a ‘God-righteousness’. Because it is such, God is its author; it is a righteousness that must elicit the divine approval; it is a righteousness that meets all the demands of his justice and therefore avails before God. . . . This is the glory of the gospel; as it is God’s power operative unto salvation so is it God’s righteousness supervening upon our sin and ruin.” (John Murray, Commentary on the Epistle to the Romans, NICNT, Vol. 1, p. 31).
From the Reflection for Trinity Presbyterian Church, OPC