The word “soul” in the New Testament comes invariably from the Greek psuche; which word occurs 105 times. It is translated “soul” 58 times; “life” 40 times; “mind” 3 times; “heart” twice; “us” once; and “you” once. MND 48.2
“Spirit” in the Old Testament is from two Hebrew words, n’shah-mah and ruahh. MND 48.3