Exodus 33:16

for how can it be known for certain that I and this people have found favour in Thy sight, but by Thy going with us? or I and this people be glorious above all that are on the earth?

And how shall it be surely known, that both I and this people have found favour with thee, except only if thou go with us? So both I and thy people shall be glorified beyond all the nations, as many as are upon the earth.