The Lord will Remove all Your Diseases
Your total obedience to God is essential because you will receive many blessings and one of them is that you will be free from sickness and disease.
Some people might not believe this, but many diseases attack people because of unhealthy habits such as smoking, drinking, lack of exercise, lack of resting, do not look after yourself, worrying. If you partake of these things, you are disobedient to God because He commands us to rest and take care of our bodies.
You shall be blessed above all peoples; there shall not be a male or female barren among you or among your livestock. And the Lord will take away from you all sickness, and will afflict you with none of the terrible diseases of Egypt which you have known, but will lay them on all those who hate you. (Deuteronomy 7: 14-15)