'Day by day' in the Bible

And the taskmasters hasted them forward, saying, "Fulfill your work day by day, even as when straw was given you."

Then said the LORD unto Moses, "Behold, I will rain bread from heaven down to you, and let the people go out, and gather day by day, that I may prove them whether they will walk in my law or no.

And it shall come to pass on the sixth day, that they shall settle what they shall bring in, - and it shall be twice as much as they gather day by day.

Now this is that which thou shalt offer upon the altar; two lambs of the first year day by day continually.