Arcana Coelestia #43
43. Verse 22 And God blessed them, saying, Be fruitful and multiply, and fill the waters in the seas; and let birds be multiplied upon the earth.
Everything that has life in it from the Lord is fruitful and multiplies without limit. This does not happen during a person's lifetime, but in the next life it does so to an astonishing extent. In the Word 'to be fruitful' has reference to matters of love, while 'to multiply' has reference to matters of faith. The fruit of love contains the seed by which it multiplies itself to so great an extent. The Lord' s blessing also means, in the Word, fruitfulness and multiplication, for they are the outcome of that blessing.
Verse 23 And there was evening, and there was morning, a fifth day.
Arcana Coelestia #9390
9390. 'And he sent boys of the children of Israel' means those things that belong to innocence and charity. This is clear from the meaning of 'boys of the children of Israel' as things which belong to innocence and charity among members of the Church. For 'sucklings', 'young children', and 'boys' mean those who have innocence and charity, or in the abstract sense, without reference to persons, those things which belong to innocence and charity, 430, 5236; and 'the children of Israel' means members of the Church, or in the abstract sense, without reference to persons, the Church itself, 9340.