MUD
In the real sense it is the mixture that results from the union of earth and water. It also has a pejorative meaning: it is applied to things of little value, despicable.
In the Bible this word is found applied to man in contrast to God, and thus Saint Paul picks up this image exposed not infrequently in the Old Testament (Is. 29:16; 64:7; Jer. 18:1-6; Eccl. 33:13-14; Rom. 9:20-21).
Mud was used in construction. The bricks were fired in a fire using a technique learned by the Israelites in Egypt (Jer. 18:3; 43:9).
They were reinforced with straw, as can be seen in many ruins (Gen. 11:3; Ex. 1:14; 5:6-19), then they were left to dry in the sun and houses were built with them (Jb. . 38:14). Constructions were also made of precious materials, but on a smaller scale than in Greece and Rome.