Why leap ye? why do you triumph and boast of your height, and look upon poor Zion with scorn and contempt, as an obscure and inconsiderable hill, if compared with you? He speaks to the hills by a usual figure called prosopopaeia. This hill, though despicable in your eyes, is precious and honourable in God's eyes, and chosen by him for his settled and perpetual residence. For though the ark was removed from this particular place, in which it was now to be placed, to the hill of Moriah, upon which the temple was built, yet it must be remembered that Zion and Moriah stood one near to the other, being both in Jerusalem, and are by some said to have been but two tops of one and the same hill.
Related Commentaries of Psalms 68:16
Psalms 68:16
16 Why leap ye, ye high hills? this is the hill which God desireth to dwell in; yea, the LORD will dwell in it for ever.