Throughout the Bible, the name of Satan may represent one being, but the characteristics of this being change several times. The one characteristic that remains the same throughout the Bible is that Satan likes to cause trouble. In Genesis 3, Satan tempts Eve to eat the fruit of the tree of knowledge, which causes the fall of man. Although the name of Satan is not used, the passage suggests an evil being taking the form of a serpent, which many believe was Satan.
Next, which may be the first mention of the name of Satan in the Bible, is in 1Chronicles 21:1,