1 Samuel 26:20

Let not my blood fall to the earth; do not attempt to spill my innocent blood like water upon the ground. Before the face of the Lord; remember, if thou dost it, God the judge of all men seeth it, and will avenge it of thee, though I will not avenge myself. A flea; hard to be taken, and not worth catching; a mean and contemptible person. In the mountains, where his advantage doth no way compensate his labour.