Jewish tradition holds that Abraham was ordered to sacrifice Isaac on this mountain:
...And He said: 'Take now thy son, thine only son, whom thou lovest, Isaac, and get thee into the land of Moriah; and offer him there for a burnt-offering upon one of the mountains which I will tell thee of' (Genesis 22:2).
Shortly after the angel saved Abraham from sacrificing his only child Abraham called the name of that place Adonai-jireh; as it is said to this day: 'In the mount where the lord is seen'(Genesis 22:14).
The Hebrew root of the word 'Moriah' means 'point to a place'.