'Flashing' in the Bible

I looked and there was a whirlwind coming from the north, a great cloud with fire flashing back and forth and brilliant light all around it. In the center of the fire, there was a gleam like amber.

In the midst of the living beings there was something that looked like burning coals of fire, like torches darting back and forth among the living beings. The fire was bright, and lightning was flashing from the fire.

and say to the forest of the south, Hear the word of Jehovah. Thus saith the Lord Jehovah: Behold, I will kindle a fire in thee, and it shall devour every green tree in thee, and every dry tree: the flashing flame shall not be quenched; and all that it meets from the south to the north shall be burned thereby.

so that a heart melts, and the fallen {multiply} at all of their gates. I gave a sword for slaughter, [and] alas! It is made for flashing, it is grasped for slaughtering.

And you, son of man, prophesy, and you must say, 'Thus says the Lord Yahweh to the {Ammonites} and concerning their disgrace,' and you must say, 'A sword, a sword [is] drawn for slaughtering; [it is] polished for holding, {for flashing like lightning},