'Three' in the Bible

The night-spirit has two daughters, Give, give. There are three things which are never full, even four which never say, Enough:

There are three things, the wonder of which overcomes me, even four things outside my knowledge:

For three things the earth is moved, and there are four which it will not put up with:

There are three things whose steps are good to see, even four whose goings are fair: