Genie,
I don't know of any songs that include Mount Pisgah in the title. There is a tune named "Pisgah" which is used for various sets of lyrics. Of the ones I have seen, none mention Mount Pisgah. I don't know why the tune has that name. "Sweet Hour of Prayer" mentions Mount Pisgah:
"Sweet hour of prayer! sweet hour of prayer!
May I thy consolation share;
Till from Mount Pisgah's lofty height,
I view my home, and take my flight..."

The following song, "There Is a Sea" (Lula Klingman Zahn, 1921), describes the Sea of Galilee, the Jordan River, and the Dead Sea. As you may know, the northern part of the Jordan River supplies most of the water that flows into the Sea of Galilee. The southern part of the Jordan River flows out of the Sea of Galilee and down to the Dead Sea. The Dead Sea has no outlet. Thus the Sea of Galilee, which gives away what it receives, is a productive fresh-water lake, but the Dead Sea, which keeps all that it receives, is so salty that no fish can live in it. We occasionally sing this beautiful song based on these facts:

There is a sea which day by day
Receives the rippling rills
And streams that spring from wells of God
Or fall from cedared hills
But what it thus receives it gives
With glad unsparing hand
A stream more wide, with deeper tide
Flows on to lower land.

There is a sea which day by day
Receives a fuller tide
But all its store it keeps, nor gives
To shore nor sea beside
It's Jordan stream, now turned to brine
Lies heavy as molten lead
It's dreadful name doth e'er proclaim
That sea is waste and dead

Which shall it be for you and me
Who God's good gifts obtain?
Shall we accept for self alone
Or take to give again?
For He who once was rich indeed
Laid all His glory down
That by His grace, our ransomed race
Should share His wealth and crown.

Kent