King James Version
And the LORD said unto Cain, Where is Abel thy brother? And he said, I know not: Am I my brother's keeper?New International Version
Then the LORD said to Cain, "Where is your brother Abel?I don't know," he replied. "Am I my brother's keeper?"Catholic Public Domain Version
And the Lord said to Cain, "Where is your brother Abel?" And he responded: "I do not know. Am I my brother’s keeper?