New King James Version
May God do so to Abner, and more also, if I do not do for David as the LORD has sworn to him—

King James Bible
So do God to Abner, and more also, except, as the LORD hath sworn to David, even so I do to him;

American Standard Version
God do so to Abner, and more also, if, as Jehovah hath sworn to David, I do not even so to him;

Berean Study Bible
May God punish Abner, and ever so severely, if I do not do for David what the LORD has sworn to him:

Douay-Rheims Bible
So do God to Abner, and more also, unless as the Lord hath sworn to David, so I do to him,

English Revised Version
God do so to Abner, and more also, if, as the LORD hath sworn to David, I do not even so to him;

World English Bible
God do so to Abner, and more also, if, as Yahweh has sworn to David, I don't do even so to him;

Young's Literal Translation
thus doth God to Abner, and thus He doth add to him, surely as Jehovah hath sworn to David -- surely so I do to him:

2 Samuel 3:9 Additional Translations ...