Malachi 4:2-3

2 ‘But it will be different for you who respect my name. My power to make you well again will come to you. It will be like the sun that rises to shine on you. When that happens, you will be very happy. You will jump up and down like young cows when someone lets them go free. 3 Then you will walk over the wicked people. They will be like ashes under your feet. That will happen on the day when I do these things.’

4:2The sun can burn with a strong heat and it can cause a fire. But the sun can also make people well. When Jesus appears on the great day of the Lord, people who worship the Lord will become completely well. They will be very happy.

That is what the Lord Almighty says.