'Goads' in the Bible

when the edges of the sickles, and the hoes, and the forks, and the axes were blunted; and to set the goads.

The words of the wise are as goads, and the collections of them as nails fastened in: they are given from one shepherd.

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