Genesis 7

"Then the Lord said to Noah, 'Enter the ark, you and all your household, for I have seen that you alone are righteous before Me in this generation.'"

Genesis 7:1

This chapter is quite repetitive.  If I was analyzing it from an editorial perspective, I would have told the author to condense it and combine it with either the previous chapter or the following chapter.  Three times, this chapter states that Noah's family and all the animals entered the ark.  Three times, this chapter mentions that the deluge came and wiped out all life that wasn't in the ark.  Why are these things repeated so many times?

I think that this is done at least in part to show the consistency of the Lord.  This chapter starts in the future tense, with God telling Noah what hadn't happened yet.  In the middle, the chapter uses a present tense that's more of Noah's perspective while the flood is happening.  The end is a past tense view of the deluge, as though it were written while the waters were still high but after the rain stopped.

The first section (future tense) teaches us to trust the Lord to provide for our future needs, for if we follow Him, then He has plans for our lives to prosper.  The middle section (present tense) teaches us to trust the Lord to help us when struggles arise - in the case of Noah, God helped him round up the creatures and then closed the door of the ark behind them.  The final part of this chapter (past tense) teaches us to be thankful for God's provision, especially when times are difficult.