This is an unhappy expression, bringing in the name of God where it does not occur. In the O.T. it is chalilah, 'far be it.' Ge 44:7,17, etc. In the N.T. ?? ???????, 'let it not be.' Ro 3:4,6,31, etc.
No, indeed; let us hold God to be true, though every man should prove to be false. As it stands written, "That Thou mayest be shown to be just in the sentence Thou pronouncest, and gain Thy cause when Thou contendest."