1 And when he had called unto him his twelve disciples, he gave them power against unclean spirits, to cast them out, and to heal all manner of sickness and all manner of disease.
It is in His sovereign will to heal and this is why He gave us the Great commission and the authority to heal and cast out demons as His priesthood of believers. Mar 16:15-20, Mat 28:18, Mat 10:1.
But He has a timing to heal. He also said signs and wonders will follow every believer. Mar 16.17. It is based on your faith and belief. Mat 9:29 and 2 Chr 20:20.
29 Then touched he their eyes, saying, According to your faith be it unto you.
He also gives abundantly latter rain and former rain. He instituted appointed times of the harvest that He commanded us to celebrate. Jer 5:24. Therefore fear the Lord who has authority to bless you with all these good things.
Do not rebel otherwise you are opening the door to the enemy who is all out to prevent good from being withheld from you. Verse 25.