Arcana Coelestia#8161
8161. 'And behold, the Egyptians were travelling after them' means the constantly increasing oppressiveness of falsity. This is clear from the meaning of 'the Egyptians' as those steeped in falsities arising from evil, thus also as the actual falsity arising from evil, dealt with in 8132, 8135, 8146, 8148; and from the meaning of 'travelling after them' as a more immediate influx and communication. 'Pharaoh drew near' has meant the influx of falsity arising from evil, 8159, and therefore 'travelling after them' means an influx even more immediate, and so more oppressive. So it is that the constantly increasing oppressiveness of falsity is meant. What immediately follows describes a temptation; and since this is brought about by the influx from the hells of falsity arising from evil, its getting nearer, that is, its increasing oppressiveness, is described now.
Arcana Coelestia#8135
8135. 'And I will harden Pharaoh's heart' means that the obstinacy of those steeped in falsities arising from evil would still remain. This is clear from the meaning of 'being hardened' as their obstinate determination, dealt with in 7272, 7300, 7305; and from the representation of 'Pharaoh' as those who are steeped in falsities arising from evil, or what amounts to the same thing, those who are lost in damnation, as above in 8132. The words 'Pharaoh's heart' are used because in the genuine sense 'heart' means the good of heavenly love, 3313, 3635, 3883-3896, 7542, and therefore in the contrary sense means evil, at this point the evil of those who have known [the truths of] faith and led a life of evil.