But, if this is not so, who is able to prove to me that I have lied and to place my words before God
Other versions
King James Version
And if it be not so now, who will make me a liar, and make my speech nothing worth?English Standard Version
If it is not so, who will prove me a liar and show that there is nothing in what I say?"New International Version
"If this is not so, who can prove me false and reduce my words to nothing?"