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.
By no means! Be sure that God is ever true, though all mankind prove false. As it is written, That thou mayest be found just in thine argument, And gain thy cause when thou contendest.