Psalm 81:13
"Oh that my people had hearkened unto me, and Israel had walked in my ways!"
Cross References (ranked by relevance)
Isaiah 48:18
17
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:
Deuteronomy 5:29
16
O that there were such an heart in them, that they would fear me, and keep all my commandments always, that it might be well with them, and with their children for ever!
Matthew 23:37
O Jerusalem, Jerusalem, thou that killest the prophets, and stonest them which are sent unto thee, how often would I have gathered thy children together, even as a hen gathereth her chickens under her wings, and ye would not!