Isaiah 48:18 in the King James Version
O that thou hadst hearkened to my commandments! then had thy peace been as a river, and thy righteousness as the waves of the sea:
Context
17 The LORD, your Redeemer, the Holy One of Israel, says: “I am the LORD your God, who teaches you to profit, who leads you by the way that you should go.
18 Oh that you had listened to my commandments! Then your peace would have been like a river and your righteousness like the waves of the sea.
19 Your offspring also would have been as the sand and the descendants of your body like its grains. His name would not be cut off nor destroyed from before me.”