In the case of Noah we see that faith heeds God’s warning with great reverence, it acts on that warning, it condemns the world for its unbelief, and it becomes an heir of righteousness. This single verse is a perfect revelation and exposition of both saving and ongoing faith.
When you were saved and you found him and his word, Christ was everything to you. You were given the new nature and the new life and you loved him more than anything else. But have you lost your way? You still worship him, you still pray to him, but you cannot say that he now dictates everything you do in life: where you go, how you are entertained, your leisure, your work. Perhaps you are forced to go an live in another part of the country. Do you ask, ‘Is there a church there? Can I serve the Lord there?’ If this revelation that you have received led to your conversion, it dictates everything in your life still: how you bring up your children; how you react to provocation. You live looking at things not seen as yet. You don't know what it is like beyond the grave, you just have these wonderful insights from the Scripture of what will happen. Remember Pilgrim's Progress. What begins the book, what is dominant all the way through, and at the end is heaven, eternity. The first impression on Christian’s heart before he was ever saved was eternal life: that was the burden.
Are you 15, 17 or 20? Maybe you have been treating God lightly, dismissing him. When you were young, you took the gospel more seriously, but then you thought, ‘There can't really be a God’, and you threw away any interest in the Bible. ‘I am getting on. I have not been judged.’ Be very careful: God is so patient. Don't test his patience. Don't insult him. Two or three years have passed, and you have neglected him. Well he may leave you to the end of your lifetime. But then, sadly, if you have rejected him he must reject you, and the terrors and the horrors begin.