Balancing equations is necessary because of the laws of conservation of matter, which states that "matter cannot be created or destroyed, but only changed from one form to another."
This means that the number of atoms on both sides of the equation must be the same
This is also important because balanced equations helps scientists keep track of chemical reactions.
“Then God blessed them, and God said to them, “Be fruitful and multiply; fill the earth and subdue it; have dominion over the fish of the sea, over the birds of the air, and over every living thing that moves on the earth.””
Genesis 1:28 NKJV
http://bible.com/114/gen.1.28.nkjv
The Creation Mandate tells us to"fill the earth and subdue it", and balanced equations help us to be more organized.
They are a short concise way to record chemical reaction
The act of balancing equations reinforces the Law of Conservation of Matter, which is a natural law set in place by God.
The discovery of this law helped us to further understand the amazing world that God has created for us.