Isaiah 48:17-18
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17Thus saith Jehovah, thy Redeemer, the Holy One of Israel: I am Jehovah thy God, who teacheth thee to profit, who leadeth thee by the way that thou shouldest go. 18Oh that thou hadst hearkened to my commandments! then had thy peace been as a river, and thy righteousness as the waves of the sea:
Isaiah 48:17-18 (ASV)