'Bit' in the Bible

It is to be taken in one house; not a bit of the flesh is to be taken out of the house, and no bone of it may be broken.

And take one bit of bread and one cake of oiled bread and one thin cake out of the basket of unleavened bread which is before the Lord:

And he made two winged ones, hammered out of one bit of gold, for the two ends of the cover;