They fear their Rabb who commands from within their depths and they do as they are commanded.
Sayyed Abbas Sadr-Ameli
They fear their Lord (supreme) from above them, and they do what they are commanded.
Al-muntakhab fi tafsir al-Qur'an al-Karim
They entertain the profound reverence dutiful to Him and keep in awe of Him, their Creator, Who is far above them and beyond all, and they discharge their duties in obedience to His command