Arcana Coelestia # 8231
8231. 'Coming after them into the sea' means that they took possession of them. This is clear from the meaning of 'coming after them' - when said of the waters of the sea, by which falsities arising from evil are meant - as taking possession of.
Exodus 16:9-10
9
Moses said to Aaron, "Tell all the congregation of the children of Israel, 'Come near before Yahweh, for he has heard your murmurings.'"
10
It happened, as Aaron spoke to the whole congregation of the children of Israel, that they looked toward the wilderness, and behold, the glory of Yahweh appeared in the cloud.