'Decks' in the Bible

You shall make a window for the ark, and finish it to a cubit from the top; and set the door of the ark in the side of it; you shall make it with lower, second, and third decks.

I will rejoice greatly in the Lord,My soul will exult in my God;For He has clothed me with garments of salvation,He has wrapped me with a robe of righteousness,As a bridegroom decks himself with a garland,And as a bride adorns herself with her jewels.