when it comes to Healing or even Salvation or Provision these three great Positional Truths are things you never ask for because they are things that have already been done and  given to us freely  yet positionally because of the Cross and back in the garden before the Fall of Man., meaning they have to be received by believing. Begin Renewing Your Mind with healing verses and provision verses meditating upon them as much as possible everyday sowing those verses as seeds in order to have a harvest Luke 8:11. To answer the other part of your question at this time is too time-consuming. I learned years ago the hard way to assimilate whole chapters and even whole Epistles to get the proper interpretation from the Holy Spirit in order to avoid false teachings and false doctrines since I'm an Apostolic International missionary, I did not want to teach false Doctrine like many preachers in Bible teachers do by taking  verses out of their proper context but getting His Mind regarding His Word.

 Once you are Born Again, if you don't tell your heart what to believe, the devil will do it for you

 When it comes to Healing actually it's not a promise because it's something that's already been done yet positionally at the cross.Promises are not something that we're done at the cross. The three greatest position of truths that were done for mankind of the cross with salvation, healing and provision

 we let Satan rule the world and not God because God gave Dominion to man, God told man to guard the garden to protect the garden from the serpent into this very day we the church the new creation the body of Christ are the guardians of the truth the pillar and foundation of the truth

 To believe in religion is a hard pass, but to believe in Jesus, wholeheartedly yes.

 God in his foreknowledge has elected and predestined and ordained every human being to be saved and he did save them all at the cross yet positionally, meaning they have to receive what he's already done for them positionally at the cross by believing.

 You may very well be a theist but you still need to be Born Again in order to get into Heaven when you die.