37For as were the days of Noah, so will be the coming of the Son of Man.
38For as in those days before the flood they were eating and drinking, marrying and giving in marriage, until the day when Noah entered the ark,
39and they were unaware until the flood came and swept them all away, so will be the coming of the Son of Man
These verses are saying, that when Christ returns, it will be like when Noah came. Just as when Noah came, and people were too busy with worldly things, and unaware and careless about God, then, God sent the flood and destroyed all, so, it will happen when Christ returns who is, Baha'u'llah. And the year, was alluded also, being 1260 AH, or the end of 2300 years, which is 1844. Albeit all is decoded, so, people are free to accept or reject.