Easton's Bible Dictionary
Josephus relates (Ant 11:8,2-4) that Sanballat built a temple for the Samaritans on this mountain, and instituted a priesthood, as rivals to those of the Jews at Jerusalem. This temple was destroyed after it had stood two hundred years. It was afterwards rebuilt by Herod the Great. There is a Samaritan tradition that it was the scene of the incident recorded in Genesis 22 . There are many ruins on this mountain, some of which are evidently of Christian buildings. To this mountain the woman of Sychar referred in John 4:20 . For centuries Gerizim was the centre of political outbreaks. The Samaritans (q.v.), a small but united body, still linger here, and keep up their ancient ceremonial worship.
These dictionary topics are from M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition, published by Thomas Nelson, 1897. Public Domain.
Easton, Matthew George. Entry for 'Gerizim'. Easton's Bible Dictionary. https://www.studylight.org/dictionaries/eng/ebd/g/gerizim.html. 1897.