669. Verse 19 And of every living creature of all flesh, pairs of all, you shall cause to enter the ark, to keep them alive with you; male and female they shall be.

'Living creature' ¹ means things of the understanding, 'all flesh' those of the will. 'Pairs of all you shall cause to enter the ark' means the regeneration of these. 'Male' means truth, 'female' good.

Footnotes:

'A seed' signifies the ultimate and primary levels in a person. It also signifies good and truth from the Lord. In an opposite sense, it signifies falsity of doctrine and hellish falsity. 'A seed' signifies everyone who constitutes the Lord's spiritual kingdom and faith grounded in charity.

In Genesis 12:7, 8:15, 16, 'a seed' signifies love and everyone who has love.

(References: Arcana Coelestia 1025)