“Seven priests shall bear seven trumpets of rams’ horns before the ark. On the seventh day you shall march around the city seven times, and the priests shall blow the trumpets.”
Joshua 6:4 ESV
The number seven is the number of spiritual perfection in the Bible, as it is stamped on every work of God. Even without reading the Bible, we find that each week has seven days, seven notes define all music, seven colors appear in a rainbow, and seven periods are in the periodic table of chemistry. The most popular number in our world is seven. To me, seven is another way of God speaking to us in a unique way that lets us know He is in control and watching over us.