The Numbers
I still believe in strength in numbers. These are the ones I've chosen.

The most powerful number in occultism. 33 is found in more places than one might believe. The sun's point of highest elevation is measured at 33 degrees. There are 33 vertebrae in the human spine. Jesus Christ died at the age of 33. The biblical narrative talks of a third of the angels falling with lucifer (33%). Secret societies have picked up its uncanny pattern of appearance, ultimately leading them to utilize it as a symbol of utmost esoteric importance.
“When all this comes true—and it surely will—then they will know that a prophet has been among them.”

The number of divinity. 7 holds much meaning pertaining to the divine, the otherworldly, the stage beyond mankind. It is a number of completion, such as the days of the week. On the seventh day, God saw that His creation was good and complete which allowed Him to rest. Throughout the book of Revelation's apocalyptic imagery, the number 7 is used more than 50 times.
“Ask and it will be given to you; seek and you will find; knock and the door will be opened to you.”

A number commonly associated with bad luck in today's age, 13 holds an insurmountable amount of symbolic weight which can be traced back to the ancient world. The Egyptian legend of Isis and Osiris features the number in a crucial part of its narrative, leading it to eventually adopt the meaning of rebirth and evolution. Unknown to many, D.C.'s “House of the Temple” headquarters of freemasonry is located exactly 13 blocks from the Whitehouse.
“And now these three remain: faith, hope and love. But the greatest of these is love.”

While modern astrological practices define 6 as the number of “caring, nurturing, and healing,” the ancient esoteric understanding of its symbolic meaning is not as soothing. Throughout most of history, 6 has been known as “man's number.” God created mankind on the sixth day of creation. 6 being one less than 7, the number of divinity, indicates that mankind is incomplete (or fallen), lacking divine nature. The book of Revelation defines the mark of the coming beast as 666, a symbol that will act as a branding for those led astray by the deceiver. Before you plead the fifth, think about how the man of your dreams most likely stands at 6'6” with a 6 pack.
“Here is wisdom. Let him that hath understanding count the number of the beast: for it is the number of a man; and his number is Six hundred threescore and six.”

Similar to seven, the number 3 symbolizes harmonious completion which comes in many forms: body, mind, spirit; Heaven, earth, water; birth, life, death; Father, Son, Holy Spirit. The examples, both in the observable and in the realm of the unseen, are seemingly endless. Schoolhouse Rock didn't lie when they claimed it was a magic number.
“But the Lord is faithful, and he will strengthen you and protect you from the evil one.”

We laughed at the infamous 9+10 vine, but who knew that the number 21 held much more meaning than that of a trendy punchline. Biblically, 21 often relates to man's sinfulness and the redemptive power of Christ. In multiple places within biblical text, 21 negative traits are listed regarding fallen archetypes. There are also multiple excerpts of scripture containing 21 words that allude to man's fallen nature. As the multiple of 7 (divinity) and 3 (completion), it's no surprise that this number holds much Biblical symbolic meaning.
“Jesus replied, ‘Truly I tell you, if you have faith and do not doubt, not only can you do what was done to the fig tree, but also you can say to this mountain, Go, throw yourself into the sea, and it will be done.’”