3 verses have
keep
in Edition Clear Qur'an by Talal Itani / Az-Zumar (The Groups)

39:10Say, “O My devotees who have believed, keep your duty to your Lord. For those who do good in this world, is goodness. And God’s earth is vast. The steadfast will be paid their wages in full, without reckoning.”

39:71Those who disbelieved will be driven to Hell in throngs. Until, when they have reached it, and its gates are opened, its keepers will say to them, “Did not messengers from among you come to you, reciting to you the revelations of your Lord, and warning you of the meeting of this Day of yours?” They will say, “Yes, but the verdict of punishment is justified against the disbelievers.”

39:73And those who feared their Lord will be led to Paradise in throngs. Until, when they have reached it, and its gates are opened, its keepers will say to them, “Peace be upon you, you have been good, so enter it, to abide therein eternally.”