And when he had opened the fourth seal ?????

Revelation 6:7–8 (KJV 1900)
7 And when he had opened the fourth seal, I heard the voice of the fourth beast say, Come and see. 8 And I looked, and behold a pale horse: and his name that sat on him was Death, and Hell followed with him. And power was given unto them over the fourth part of the earth, to kill with sword, and with hunger, and with death, and with the beasts of the earth.

The rod and reproof give wisdom

Deuteronomy 6:5–9 (KJV 1900)
5And thou shalt love the LORD thy God with all thine heart, and with all thy soul, and with all thy might. 6and these words, which I command thee this day, shall be in thine heart: 7And thou shalt teach them diligently unto thy children, and shalt talk of them when thou sittest in thine house, and when thou walkest by the way, and when thou liest down, and when thou risest up. 8 And thou shalt bind them for a sign upon thine hand, and they shall be as frontlets between thine eyes. 9And thou shalt write them upon the posts of thy house, and on thy gates.