'Thereof' in the Bible

And the oracle within was twenty cubits in length, and twenty cubits in breadth, and twenty cubits in the height thereof; and he overlaid it with pure gold; and he overlaid the cedar-wood altar --

And Elijah said to her, Fear not; go, do as thou hast said; but make me thereof a little cake first; and bring it to me; and afterwards make for thee and for thy son.