'Within' in the Bible

But give [as] charitable giving the things that are within, and behold, everything is clean for you.

And they will raze you to the ground, [you] and your children within you, and will not leave a stone upon a stone within you, {because} you did not recognize the time of your visitation."

And they said to one another, "Were not our hearts burning within us while he was speaking with us on the road, while he was explaining the scriptures to us?"