Isaiah 48:17-19

Had Israel but Obeyed Yahweh! This is a later passage, looking forward to a grey future far other than the glowing picture painted by Isaiah 48:2 Is. Yahweh saith, I am thy God, O Israel, and would fain lead thee in paths of prosperity. Hadst thou but followed My leading thou wouldst have enjoyed perpetual peace, like a perennial stream; a prosperity beyond measure and a posterity beyond counting. Nor would thy name have been cut off.

Isaiah 48:18. righteousness: the prosperity which righteousness brings.

Isaiah 48:19. his: read thy (LXX).