Pastor Armstrong taught that Noah and his family entering into the ark 7 days before the flood is a prophetic picture of the church being removed prior to the 7 years of tribulation. However I am confused on the timeline. Genesis 7:11-16 says Noah, his family, and the animals entered the ark on the same day that the rains came. Perhaps the 7 days before that was used for boarding and loading of animals and provisions. So wouldn't this mean the rapture is dependant on when tribulation starts?
Genesis 7 is not written in purely chronological fashion. Moses doubles back in a circular manner typical of an Eastern, Hebraic style of writing as he tells the story of the flood. If we reorder the text of Genesis 7 slightly, we can create a chronological progression in the narrative, which allows us to understand the narrative more clearly:
Reordering the text in this way produces a chronological sequence, and in that sequence we can clearly see that the phrase "on the very same day" in v.13 is speaking about the day Noah and the animals entered the ark, not the day the flood came. The family entered on one day and then seven days later the flood came.
Therefore, the imagery of the Rapture is not disturbed, and in fact this reinforces the picture, because it confirms that the Church will be removed from the earth in the same moment, "on the very same day" so to speak.