The flag of Saudi Arabia is the flag used by the government of Saudi Arabia since March 15, 1973. It is a green flag featuring in white an Arabic inscription and a sword. The script on the flag is written in the Thuluth script. It is the shahadah or Islamic declaration of faith:
"(There is) no god but Allah. Muhammad (is the) messenger of Allah"
The sword symbolizes justice.
Green flags bearing this or other Arabic scripts are frequently seen in Islam and should not be confused with the Saudi national flag. These other flags normally do not bear the sword symbol.
The flag is manufactured with differing obverse and reverse sides, to ensure the shahada reads correctly, from right to left, from either side. The sword points from hoist to fly on both sides. The flag is sinister hoisted, meaning that the obverse side (front) has the hoist side (flagpole side) to the right.