Allen Iverson says he's officially done with booze ... telling TMZ Sports he's made a promise with God to never drink again.
We caught up with The Answer out in New York City this week just after he announced his six-month sobriety milestone -- and he made it clear, he's committed to a no-alcohol lifestyle from here.
Iverson told us he has no temptations to revert back ... explaining, "I had my conversation with God."
"I can't lie to Him," he said. "I said, 'I ain't doin' it no more,' I ain't doin' it.