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I.e., metonymically (in the consensus of all classical commentators), "your ancestors".
i.e., your ancestors.
It was a widespread Flood. Cf. vii. 59-64: also xi. 25-49. Noah was ridiculed for his preparations for the Flood: see xi. 38, n. 1531. But Allah had commanded him to build an Ark, in order that mankind should be saved from perishing in the Flood. But only those of Faith got into the Ark and were saved. As the Ark was built to Allah's command, Allah "carried you (mankind) in the floating (Ark)".