A. Yusuf Ali:Translation:
Say: "O Allah. Creator of the heavens and the earth!
Knower of all that is hidden and open! 4314 it is
You that wilt judge between Your Servants in those
matters about which they have differed."

Muhammad Asad:Translation:
Say: “O God! Originator of the heavens and the earth! Knower of all that is beyond the reach of a created being’s perception, as well as of all that can be witnessed by a creature’s senses or mind! 50 It is Thou who wilt judge between Thy servants [on Resurrection Day] with regard to all on which they were wont to differ!”
4314 The mysteries of life and death, of worship and spiritual growth, are matters of high moment, which it may be difficult for us to apprehend in this present life. It is no use arguing about them and plunging in endless controversies. The proper attitude is to appeal to Allah humbly to accept our purified hearts and Faith, in the firm hope that everything which is now vague to us will be cleared up in the Hereafter, and to pray to Him for His guidance and mercy.