For verily I say unto you, That whosoever shall say unto this mountain, Be removed, and be cast into the sea; and shall not doubt in his heart, but shall believe that those things which he said shall come to pass; he shall have whatsoever he said.
All Commentaries on Mark 11:23 Go To Mark 11
George Leo Haydock
AD 1849
Ecclesiastical history informs us, that St. Gregory of Neo-Cæsarea, surnamed Thaumaturgus (whose feast is kept Nov. 17.) performed this miracle, removing by his prayers a mountain that obstructed the building of a church. (Ven. Bede)