In Gen.1:2, “the deep or waters” were already existing. When…

In Gen.1:2, “the deep or waters” were already existing. When did God create it? For sure it should be prior from Light in v.3.

It’s never mentioned in Gen. 1 that God created the waters, except the “Seas” in Gen.1:10, which were gathered from the “waters” in vv.2&6.