'Goad' in the Bible

And Shamgar son of Anath came after him, and he killed six hundred Philistines with the goad of an ox; he also delivered Israel.

And Saul said, “Who are You, Lord?” And He answered, “I am Jesus whom you are persecuting,

And when we were all fallen to the earth, I heard a voice saying unto me in the Hebrew language, Saul, Saul, why persecutest thou me? it is hard for thee to kick against the goad.