noah built the ark, it was most probably, in the desert, no harbour,or anything built to launch it.
no doubt they asked noah why he builds the ark,They must of had a great a laugh and mocking.
100 years it took to finished the ark. they had a chance to repent.the warnings where there.
then the rain came , and God shut the door of the ark.
i bet they were banging on the door to be let in, but once the door was shut, there was no going back.
same whith the gospel, of Jesus and offer of salvation,,people will mock and laugh at it, but God has an appointed time,once God shuts the door, you wont be able to change your mind, it will be over for you. you will be face to face whith him, on your own,before him, and give account of every deed,thought,and word.
you cannot mock God, what you sow ,you reap.
Jesus will be the final judge.