May God do these things to Abner, and may he add these other things, if, in the same way that the Lord swore to David, I do not do so with him
Other versions
King James Version
So do God to Abner, and more also, except, as the LORD hath sworn to David, even so I do to him;English Standard Version
God do so to Abner and more also, if I do not accomplish for David what the LORD has sworn to him,New International Version
May God deal with Abner, be it ever so severely, if I do not do for David what the LORD promised him on oath