The erector spinae is a group of muscles and tendons, including the spinalis muslces, which run vertically up your spine. Together, the erector spinae muscle group and the spinalis muscles aid in backbending, side bending and twisting the spine.
How to Effectively Memorize Scripture Introduction: The best way I know of for memorizing the Word is to use Scripture memory cards.
How many books of the Bible did Isaiah write? The Prophet Isaiah is attributed to writing only one book in the Canonized Bible (the bible with 66 Books and Old & New testament divisions), the Book of Isaiah.