The third day finishes with a command that sounds almost agricultural. In Targum Pseudo-Jonathan on (Genesis 1:11), the Lord tells the earth to "increase the grassy herb whose seed seedeth, and the fruit-tree making fruit after its kind, whose seed is in itself."
The Aramaic doubles up on the idea of self-perpetuation. Grass that seeds. Trees that carry seed inside their own fruit. Creation, from its third day, is built to keep creating. God does not merely plant — God plants plants that plant.
This is Judaism's first lesson in continuity. Holiness is not a one-time event; it is a pattern that reproduces itself, seed inside of fruit, inside of seed, inside of fruit, down through every field and generation.