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21 It shall happen, when many evils and troubles are come on them, that this song shall testify before them as a witness; for it shall not be forgotten out of the mouths of their seed: for I know their imagination which they frame this day, before I have brought them into the land which I swore."
In Genesis 50:26, this signifies concealment within factual knowledge from the church. (Arcana Coelestia 6596)
(Referencias: Genesis 1, 1:26, 26)