Given:
Par value of the bond : 5,000
coupon rate of the bond: 5%
par value x coupon rate = annual interest
5,000 x 5% = 250 annual interest
Samuel will receive an annual interest of $250 until the bond reaches maturity, or he sells the bond to someone else.
Regardless of the changes in bond prices in the market, Samuel will always receive a fixed annual interest of 250 from his bond.