Why is the gulf of suez important to egypt?

Today, the Suez Canal is operated by the Suez Canal Authority. The canal itself is 101 miles (163 km) long and 984 feet (300 m) wide. It begins at the Mediterranean Sea at Point Said flows through Ismailia in Egypt, and ends at Suez on the Gulf of Suez. It also has a railroad running its entire length parallel to its west bank. 
The Suez Canal can accommodate ships with a vertical height (draft) of 62 feet (19 m) or 210,000 deadweight tons. Most of the Suez Canal is not wide enough for two ships to pass side by side. To accommodate this, there is one shipping lane and several passing bays where ships can wait for others to pass. 

The Suez Canal has no locks because Mediterranean Sea and the Red Sea's Gulf of Suez have approximately the same water level. It takes around 11 to 16 hours to pass through the canal and ships must travel at a low speed to prevent erosion of the canal's banks by the ships' waves