Here we see the number two associated with reinforcement or completeness, especially in testimony. The same theme occurs in connection with the Lord Jesus Christ
There are several things which occur in the Bible as pairs.
Here we see another recurring theme: the number "two" is used for contrast.
The Russian mathematician and agnostic-turned-Christian, Ivan Panin, found many more patterns of seven in the original Greek and Hebrew text of the Bible.
Given that most Biblical authors didn't know each other, it was impossible for them to construct these numerical patterns. Moreover, some details of the pattern, such as the day on which it rained, or the number of children in a certain family, were out of the control of any human agent. The existence of numerical patterns in the Bible is proof of its divine origin. Books have been written on numerical patterns in nature. The simultaneous existence of numerical patterns in the Bible makes perfect sense when we perceive that the same God who created nature also composed the Bible.
Acknowledgment: Most of the information of this article has been taken from "Numbers in the Bible" by Robert Johnston, John Ritchie Publications.