'Light' in the Bible

And this is a light thing in the sight of Jehovah: he will give the Moabites also into your hand.

And they said one to another, We are not doing right; this day is a day of good tidings, and we hold our peace: if we tarry till the morning light, the iniquity will find us out; and now come, let us go and tell the king's household.

And Hezekiah said, It is a light thing for the shadow to go down ten degrees: no, but let the shadow return backward ten degrees.