Isa 35:4 Say to them that are of a fearful heart, Be strong, fear not: behold, your God will come with vengeance, even God with a recompence; he will come and save you.
Isa 35:5 Then the eyes of the blind shall be opened, and the ears of the deaf shall be unstopped.
Isa 35:6 Then shall the lame man leap as an hart, and the tongue of the dumb sing: for in the wilderness shall waters break out, and streams in the desert.
Mat 11:4 Jesus answered and said unto them, Go and shew John again those things which ye do hear and see:
Mat 11:5 The blind receive their sight, and the lame walk, the lepers are cleansed, and the deaf hear, the dead are raised up, and the poor have the gospel preached to them.
God will heal us physically, and does not want us to be sick, for Jesus testifies of that when He was healing people.
Some people might not be healed because they lack faith.
Some people might not get healed because they are arrogant, or they could be, like Paul that received a thorn in the flesh so that he would not exalt himself for then God could not use Him, for He resists the proud but gives grace unto the humble.
Some people might not get healed like people in a wheelchair for they have a problem with lusting after the opposite sex, so if they were healed they might be chasing after them, and engaging in sexual immorality.
Some people might not get healed as a testimony that they still follow God, and love Him, despite them not being healed.
Some people might not get healed because of their hypocrisy that they are not doing the will of God.
God does not have have pleasure in us being sick which He said He does not have pleasure in the death of the wicked.
Some people think that God is a war monger, and was mean in the Old Testament, but this is not true.
Everything God did was for the physical protection of people, and so they would be right with Him for if not they did not have His protection, and they would not benefit to be with Him.
God puts down a thousand to save 10 thousand.
God said He winked at the ignorance of the nations, so He left them alone unless they messed with Israel to protect His people, but Israel's disobedience caused them to lose God's protection, and they were punished.
Or if some people in Israel was having a big influence in falsehood causing many people to turn to it then God would cause them to cease so Israel would not become disobedient which they would lose His protection, and they would not be saved in the future.
That is why God said do not marry with the heathen nations for you might get led away with their ways of falsehood.
Or if a nation, or kingdom, was influencing too much and ruling over much, and were cruel towards other people, and spreading their falsehood too far He would cause other nations to take them down to stop them.
Every kingdom from Egypt to the Roman Empire had the revelation of God but they blew it one by one, so God caused them to cease ruling, although the Roman Empire does not lose her dominion until Jesus puts down the world, which 10 horns come from them which is the world divided in to 10 sections with a leader in each section that will also have the revelation of God for the Gospel will be preached in to all the world as a witness to all nations and then the end shall come.
Some people say God is cruel because He caused the flood that wiped out people, but people do not realize that He had a reason because of the behavior of those people.
The Bible says that violence filled the earth, and they had corrupted God's ways on earth which they were not showing love, and forgiveness, and the imaginations of their heart was only evil continually.
So none of them were right with God, and probably could not be right with God, and they had terrible behavior because that is what happens when the world is without God and His ways.
If God did not intervene then more people would of been killed through the years than the people that were wiped out at the flood.
They probably would of devoured each other which without God more than likely they would, or only had a small portion that is family that did not go against each other.
Some people think God is cruel because He had children killed when Israel went against a nation, or at the flood, or if God allowed a nation to go against a nation, but He knows the heart, and He knew those children would grow up and follow in the footsteps of their nation, and the they would be going against the children of other nations for their nation was war like.
At the flood it was sure they would grow up to be violent, and not care about God's ways.
God is not cruel but people are cruel so He had to put down people that were spreading cruelty against people too far, and spreading their falsehood that was against God's ways too far.
If you were walking in the park with your father, and a man ran up to you with a knife, and your father put him down, would you say father you are cruel, or would you say thank you father.
Everything God did was for the protection of people.
God puts down a thousand to save 10 thousand.