This is a good question and is really at the heart of the issues with false doctrine. Yes, He did heal the lame and the sick; but He didn't heal ALL of the lame people nor did He heal ALL of the sick people. There were instances where He healed everyone at one time, but He didn't heal everyone all of the time. Example: John 5 where Jesus healed the man at the Pool of Bethesda. Jesus didn't heal any of the other people around the pool – just this one man. There are no promises that God (or Jesus) will heal everyone or every sickness and disease.

When Jesus healed, He had a purpose in His healing. In Luke 7:19-23, Jesus answered John's disciples when they asked Him, "Art thou he that should come? Or look we for another?" In Verse Luke 7:21 it says, "And in that same hour He cured many of their infirmities and plagues, and of evil spirits; and unto many that were blind He gave sight." Before we move on, please note that He healed "many" not all.

Now in answer to the question, Jesus said in Verse Luke 7:22, "...go your way, and tell John what things ye have seen and heard; how the blind see, the lame walk, the lepers are cleansed, and the deaf hear, the dead are raised, to the poor the gospel is preached." This is what they were to tell John. Jesus was referring to the fulfillment of the prophecies in Isaiah (many of them), particularly Isaiah 61:1-3 and Isaiah 49:8-9. Isaiah 49:8-9 was also quoted by Jesus in Luke 4:18-19 in the Lord's presentation in the Temple. Isaiah's prophecies presented the fact that when the Messiah came, He would perform miracles as a sign. When Jesus healed, it was a sign to the people that He was the Messiah who had come to set the captives free. The captives would be the spiritual captives. Jesus performed physical miracles in order to demonstrate His spiritual ministry to people who were spiritually dead and needed something physical to see.

In Luke 5:20, Jesus said to the paralytic, "Man, your sins are forgiven you." The scribes and Pharisees began to reason that Jesus had just committed blasphemy by saying, "Who can forgive sins but God alone?" Jesus said, "which is easier, to say, 'Your sins are forgiven you' or to say, 'Rise up and walk?' But that you may know that the Son of Man has power on the earth to forgive sins." He said to the man who was paralyzed, "I say to you, arise, take up your bed and go to your house." Please note that Jesus did this miracle, "..So that you may know that the Son of Man has power on the earth to forgive sins."

It is also an interesting note in Hebrews 2:3-4 which tells us that the miracles worked through the Apostles after Jesus was ascended up into heaven were to establish the Word spoken by them. It says, "How shall we escape, if we neglect so great salvation; which at the first began to be spoken by the Lord, and was confirmed (established) unto us by them that heard him; God also bearing them witness, both with signs and wonders, and with divers miracles, and distributions of the Holy Ghost, according to his own will?" Everything that Jesus did, as well as the disciples, in the physical realm was to bear witness to who Jesus was and to the validity of His Word. These were signs, not promises.

I feel bad for people today who are told that their physical problems can and will be healed by Jesus if they have enough faith and/or would claim the promises. There are no promises that God will heal us in the flesh. See also Paul's thorn in the flesh in 2 Corinthians 12:7 where Paul called it "...the messenger of Satan to buffet me, lest I should be exalted above measure." He prayed to the Lord three times and the Lord's answer was, "My grace is sufficient for thee: for my strength is made perfect in weakness." Paul's response was, "Most gladly therefore will I rather glory in my infirmities, that the power of Christ may rest upon me. Therefore I take pleasure in infirmities, in reproaches, in necessities, in persecutions, in distresses for Christ's sake: for when I am weak, then am I strong."

In Matthew 16:21-23 it tells us where this whole thing about "the promises" came from. In Matthew 16:21 it says, "From that time forth began Jesus to show unto his disciples, how that he must go unto Jerusalem, and suffer many things of the elders and chief priests and scribes, and be killed, and be raised again the third day." Then in Verse Mathew 16:22 it says, "Then Peter took him, and began to rebuke him, saying, 'be it far from thee, Lord: this shall not be unto thee.'" Notice how Peter rebuked Jesus because Jesus began to speak to them about His suffering which was about to take place. In Verse Mathew 16:23 Jesus answered, "...Get thee behind me, Satan: thou art an offence unto me: for thou savourest not the things that be of God, but those that be of men." The word "savourest" in Greek is the word PHRONAYS which means "frame of mind." Jesus was saying that Peter's frame of mind was toward the things of man, not the things of God. Peter was defending the flesh by rebuking Jesus so that no suffering would have to take place. Peter took the words of Jesus and applied them to his flesh and began to rebuke Jesus because Peter had a frame of mind to defend the things of man. So today, we have many who attempt to apply the promises of God to the flesh, when in reality, they were promised for the spirit or soul of man.