'Edge' in the Bible

What mean ye, ye who use this proverb of the land of Israel, saying, The fathers eat sour grapes, and the children's teeth are set on edge?

And these are the measures of the altar in cubits: the cubit is a cubit and a hand breadth. The bottom was a cubit in height and the breadth a cubit, and its border on the edge thereof round about, one span: and this was the base of the altar.