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3 And God said, Let there be light: and there was light.
29 When he gave to the sea his decree, that the waters should not pass his commandment: when he appointed the foundations of the earth:
'Waters,' 'rivers,' and 'depths,' as in Psalm 78:15-16, signify truths from the Lord.
(参考: Arcana Coelestia 2702 [1-17])