The meaning of “back” is more literal when it is connected to objects. When someone takes something back or gives something back, the spiritual meaning is mostly centered on the object in question and the people performing the action.There are many instances in the Bible which describe people turning back, looking back or going back. In most cases it is a negative, sometimes devastatingly so (as with Lot’s wife, turned to a pillar of salt when she looked back at the destructrion of Sodom). In general this represents our state when we are advancing to a new spiritual level and find ourselves wishing for the comfort and ease of the old one – going back represents a return to an earlier, inferior stage.

To build something generally means to put together a variety of simpler pieces to make a useful and more complex structure, as to build a house out of wood or bricks, and it is commonly used this way in the Word. In the land of Shinar men wished to build a tower, and in the new testament Jesus advised that a wise man should build his house on a rock. But in a representative sense the meaning is to build a mental and spiritual structure, like the doctrine of a church or the individual concepts of spiritual reality in a single mind. The building materials are representative also. The tower of Babel was built of brick, which is man-made rock, or representatively, man-made "truths", that is"truths" not from God but ideas of spiritual reality thought out by men. The house that the wise man would build was founded on a natural or "God-made" rock, which means a truth from the Word.