✝ Daniel 9:24
“Seventy weeks are determined upon thy people and upon thy holy city, to finish the transgression, and to make an end of sins, and to make reconciliation for iniquity, and to bring in everlasting righteousness, and to seal up the vision and prophecy, and to anoint the most Holy. “
I could be wrong but this verse sounds like all people every 7 years have their minds renewed. If someone has more info please tell me.