In 1 Peter 2:24, the Bible tells me .." by whose stripes you were healed." As far as God is concerned If I was sick at any time, now I am healed. Already done! Remember, in God's time frame there is no past...So if I have been healed then I was already healed over 2000 years ago. When Jesus went to the cross and said it is finished ...he is and was omniscient and knew that we would be sick and that we exercising our faith would come and petition him for our healing according to His will today. The key is to pray according to His biblical will or promises concerning you. Simply do things His way. Merely follow His instructions. When we began to search the Bible for those things that we are authorized to pray for, it is worth remembering that the Bible is the last will and testament of the Lord Jesus Christ....that is in fact why they call it the New Testament. A testament is a will or a statement of the deceased's desires regarding the disposition of his or her property accept in our case our Trustee is still alive...Jesus ...but he has gone to the next world, leaving us with His intentions in this one. In other words, God hears you in the now and He meets your needs in the now, but depending on your level of faith, the size of your need, and the opposition of the enemy, you may not physically see it or touch it until the future. However, bombarding the heavenly realm we pull down our promises to the earthly realm as we diligently confess his promises with confidence knowing that he hears us and therefore knowing that we have every petition that we desired of him according to His word. ! John 5:14 says, " Now this is the confidence that we have in HIm, that if we ask anything according to His will, He hears us." So we know that if we are asking according to His will He hears us and it also states and we know that we have the petitions that we desired of Him. Mark 11:24 says, " Whatsoever things you ask when you pray , believe that you receive them When, you pray and you shall have them." The Key is to consistently be mindful that He hears and answers NOW and therefore knowing this, we must pray according to His will Beloved.