The word(s) "seventy" appears 3 time(s) in 3 verse(s) in Quran in Muhammad Habib Shakir translation.

(1) And Musa chose out of his people seventy men for Our appointment; so when the earthquake overtook them, he said: My Lord! if Thou hadst pleased, Thou hadst destroyed them before and myself (too); wilt Thou destroy us for what the fools among us have done? It is naught but Thy trial, Thou makest err with it whom Thou pleasest and guidest whom Thou pleasest: Thou art our Guardian, therefore forgive us and have mercy on us, and Thou art the best of the forgivers.

(2) Ask forgiveness for them or do not ask forgiveness for them; even if you ask forgiveness for them seventy times, Allah will not forgive them; this is because they disbelieve in Allah and His Apostle, and Allah does not guide the transgressing people.

(3) Then thrust him into a chain the length of which is seventy cubits.