He knows what lies before His servants (especially on Judgment Day) and whatever (of intentions, or speech, or actions) they have left behind, whereas they cannot comprehend Him with their knowledge
(God the Almighty) knows all that is before (-the people - their future) and all that is behind them (-their past); they cannot encompass Him with (their) knowledge
He (Allah) knows what happens to them (His creatures) in this world, and what will happen to them (in the Hereafter), and they will never compass anything of His Knowledge
He knows what is before them and behind them (their past and future)... They cannot encompass His knowledge.
Sayyed Abbas Sadr-Ameli
He knows what is before them and what is behind them, but they (people) do not comprehend Him in (their) knowledge
Al-muntakhab fi tafsir al-Qur'an al-Karim
He knows fully well what they have brought of doings or handiwork into His presence and He knows their past which they do not presently comprehend with their minds nor do they know what Allah has for them in store