The ONLY thing that has stopped Iran from nuclear weapons is God. He used the Israelis and others but we would be in a global nuclear conflict if not for Him. How much longer will He restrain them?
Actually, that is not true at all.
Sustained efforts over many years have destroyed the Iranian nuclear program in situ. It is quite reasonable to assume Israel and the Mossad have acted where and when necessary to destroy critical elements. Saudi Arabia and the UAE have most likely lent a hand in some manner.
Time to memorize Matthew 24