'Mount Of The Lord' in the Bible

And it shall come to pass in the last days, that the mount of the LORD'S house shall be established on the top of the mountains, and shall be exalted above the hills; and all nations shall flow to it.

But ye shall sing, as the use is in the night of the holy solemnity. Ye shall rejoice from your heart, as they that come with the pipe, when they go up to the mount of the LORD, unto the rock of Israel.