Verses with the word fountain in the New Testament (4 verses):

Mark 5:29
And straightway the fountain of her blood was dried up; and she felt in her body that she was healed of that plague.

James 3:11
Doth a fountain send forth at the same place sweet water and bitter?

James 3:12
Can the fig tree, my brethren, bear olive berries? either a vine, figs? so can no fountain both yield salt water and fresh.

Revelation 21:6
And he said unto me, It is done. I am Alpha and Omega, the beginning and the end. I will give unto him that is athirst of the fountain of the water of life freely.