'Upper' in the Bible

Only the land of {the Ammonites} you did not approach, [all along] the whole upper region of the Jabbok {River} and the towns of the hill country, [according to all] that Yahweh our God had instructed.

"A person shall not take a pair of millstones or an upper millstone, for {he is taking necessities of life as a pledge}.

Yahweh shall strike you with grievous boils on the knees and on the upper thighs [from which] {you will not be able to be healed}, from the sole of your foot and up to your crown.