Formerly, Psalms 68:15-16 read:  

• The mountain of God is like the mountaine of Bashan: it is an high Mountaine, as mount Bashan. Why leape ye, ye high mountaines? as for this Mountaine, God deliteth to dwell in it: yea, the Lord will dwell in it for ever" - Geneva Bible of 1587

The allusion in this passage was that Mount Zion is comparable to Mount Bashan. Here the psalmist introduced Mount Zion by contrasting it with the vast expanses of Bashan. Symbolically Sion is in the image of a Mountain to express stability, robustness, reliability, unalterability, strength and confidence. But physically speaking, just like Mount Hermon, Mount Sinai and Mount Bashan, Mount Zion is not just a simple hill or isolated mountain, but rather a chain of high mountains with many elevated peaks or summits covered with forest and thicket as well as snow. 

Interestingly, Psalm 68:15-16 was later changed in most recent Bible versions, and the allusion is now that the Mountain of God is Mount Bashan and not Mount Zion.

• The mountain of Bashan is a mountain of God; The mountain of Bashan is a mountain of many peaks. - NASB Bible

This change is surprising because in the old times, Mount Bashan, also called “the gates of hell”, was known as a place of sinister reputation and controlled by two kings: Sihon and Og - who were associated with the ancient giant clans: the Rephaim and the Anakim. The region of northern Israel variously called Bassan and later Cesarea-Philippi, was initially the center of the cult of Ba'al, then subsequently of the cult of Pan under Roman rule. Israeli literature associated Ba'al with the godless and the underworld, with Mount Hermon in the background. According to the Book of Enoch, the arrival of the fallen angels on Earth took place on Mount Hermon, and the whole region was considered cursed.

• Enoch 6:6 "And they were, in all, two hundred and they came down on Ardis, which is the summit of Mount Hermon. And they called the mountain Hermon because on it they swore and bound one another with curses."

In Psalm 22:12, Jesus Christ describes those who crucified Him as strong bulls or mighty men of Bashan.

• Psalm 22:12 "Many bulls surround me; strong bulls of Bashan encircle me."

You be the judge, and we encourage you to do your own research.