Success is from your spirit, the most important being on earth is your spirit, your physical body is just your earth suit for your temporary sojourn in the earth, so when you got born again, God recreated your spirit because that is the real you. 2 Corinthians 5:17
Developing the quality of your spirit would determine the quality of life you would live on earth and that is a fact.
In Joshua 1:8, God said speak the word and think the word, meaning God thinks you do not have a right to choose what you say or think, he thinks he alone has the right to dictate to you what to talk and think about and since we know God always wants your success, we can be sure that thinking and talking would determine your success. Isn’t it amazing that God’s method of making you successful is not in giving you a degree or certificate showing you don’t need all those things to be successful, simply change the way you think and talk and uou would change your life.
Think and talk right as a Christian and you would definitely live right, better still exercise yourself to think and talk the word.
This book of the law shall not depart out of thy MOUTH; but thou shalt MEDITATE therein day and night, that thou mayest observe to do according to all that is written therein:for then thou shalt MAKE THY WAY PROSPEROUS and then thou shalt HAVE GOOD SUCCESS.