Arcana Coelestia # 5735
5735. 'And put each one's silver in the mouth of his pouch' means bringing in addition truth received anew in the exterior natural. This is clear from the meaning of 'silver' as truth, dealt with in 1551, 2954, 5658; and from the meaning of 'the mouth of the pouch' as the opening of the exterior natural, dealt with in 5497. For what the exterior natural and the interior natural are, see 4570, 5118, 5126, 5497, 5649. The reason why truth received anew is meant is that the silver had been put back in the mouths of their pouches on a previous occasion as well, Genesis 42:25, 27-28, 35.
Deuteronomy 7:25-26
25
You shall burn the engraved images of their gods with fire. You shall not covet the silver or the gold that is on them, nor take it for yourself, lest you be snared in it; for it is an abomination to Yahweh your God.
26
You shall not bring an abomination into your house, and become a devoted thing like it. You shall utterly detest it, and you shall utterly abhor it; for it is a devoted thing.
