It Shall Be Well With The Righteous - Isaiah 3:10

God says it shall be well with the righteous despite every other bad thing happening around them.
Isaiah 3:10 -  Say ye to the righteous, that it shall be well with him: for they shall eat the fruit of their doings.
Ecclesiastes 8:12 -  Though a sinner do evil an hundred times, and his days be prolonged, yet surely I know that it shall be well with them that fear God, which fear before him:

See The Terrible Back Ground Against Which God Is Pronouncing This
 

Isaiah 3:1 - 9 paints a gloomy picture of what will happen to the unrighteous but verse 10 declares boldly that it shall be well with the righteous among them. 

Isaiah 3:1 – 9
1 For, behold, the Lord, the LORD of hosts, doth take away from Jerusalem and from Judah the stay and the staff, the whole stay of bread, and the whole stay of water,

 2 The mighty man, and the man of war, the judge, and the prophet, and the prudent, and the ancient,
3 The captain of fifty, and the honourable man, and the counsellor, and the cunning artificer, and the eloquent orator.
4 And I will give children to be their princes, and babes shall rule over them.

 5 And the people shall be oppressed, every one by another, and every one by his neighbour: the child shall behave himself proudly against the ancient, and the base against the honourable.

 6 When a man shall take hold of his brother of the house of his father, saying, Thou hast clothing, be thou our ruler, and let this ruin be under thy hand:
 7 In that day shall he swear, saying, I will not be an healer; for in my house is neither bread nor clothing: make me not a ruler of the people.

 8 For Jerusalem is ruined, and Judah is fallen: because their tongue and their doings are against the LORD, to provoke the eyes of his glory.

 Then God says in verse 10
Say ye to the righteous, that it shall be well with him: ...

Why Is God Saying It Shall Be Well With The Righteous

1. Because Their Sins Are Taken Away and Forgiven
   Sin is the greatest evil
   Sin is a sinker
   Sin is a burden – Mathew 11:28 - Come unto me, all ye that labour and are heavy laden, and I will give you rest.
   
   Romans 4:7 - .. Blessed are they whose iniquities are forgiven, and whose sins are covered.
2. Because God Will Not Allow The Righteous To See Corruption.
   Psalms 16:5 – 6
   10 For thou wilt not leave my soul in hell; neither wilt thou suffer thine Holy One to see corruption.
   11 Thou wilt shew me the path of life: in thy presence is fulness of joy; at thy right hand there are pleasures for evermore.
    
3. Because God Will Defend The Righteous
   Psalms 91:1 – 5
   1 He that dwelleth in the secret place of the most High shall abide under the shadow of the Almighty.
   2 I will say of the LORD, He is my refuge and my fortress: my God; in him will I trust.
   3 Surely he shall deliver thee from the snare of the fowler, and from the noisome pestilence.( perilous / wasting disease.)
   4 He shall cover thee with his feathers, and under his wings shalt thou trust: his truth shall be thy shield and buckler.
   5 Thou shalt not be afraid for the terror by night; nor for the arrow that flieth by day;
   
   It shall be well with the righteous.
   Psalms 37:37 - Mark the perfect man, and behold the upright: for the end of that man is peace.