'Trembling' in the Bible

Now some of the Hebrews had gone over the Jordan to the land of Gad and Gilead; but as for Saul, he was yet in Gilgal, and all the people followed him trembling.

And there was a trembling in the camp, in the field, and among all the people; the garrison, and the spoilers, they also trembled; and the earth quaked: so there was an exceeding great trembling.

And Samuel did that which Jehovah spake, and came to Beth-lehem. And the elders of the city came to meet him trembling, and said, Comest thou peaceably?

Then came David to Nob to Ahimelech the priest: and Ahimelech came to meet David trembling, and said unto him, Why art thou alone, and no man with thee?