6730. 'To wash at the river' means worship involving the use of falsity. This is clear from the meaning of 'washing' as purification from what is understood spiritually by filth, dealt with in 3147, worship consequently being meant since worship takes place for the sake of purification; and from the meaning of 'the river', in this case the river of Egypt, as falsity, dealt with in 6693.

6679. 'And did not do as the king of Egypt spoke to them' means that the intention of those under the influence of falsities was not carried out. This is clear from the meaning of 'did not do as he spoke' as the fact that their intention was not carried out, that is, they were unable to destroy the truths meant by 'the boys', even though their intention was to destroy them by whatever method they could, 6676; and from the meaning of 'the king of Egypt' as separated factual knowledge that is opposed to the Church's truth, dealt with in 6651, thus falsity since that factual knowledge is false.