CCC 1218

Since the beginning of the world, water, so humble and wonderful a creature, has been the source of life and fruitfulness. Sacred Scripture sees it as "oveshadowed" by the Spirit of God:¹² Cf. Gen 1:2.

At the very dawn of creation your Spirit breathed on the waters, making them the wellspring of all holiness.¹³ Roman Missal, Easter Vigil 42: Blessing of Water.