God didn’t intend for life to be fair. Seeing good things happen to bad people gets disheartening. But God asks us to be patient. After all, He was patient for us to come to know and love Him. If we ask for justice among others we must also ask for justice for ourselves. We, too, may have been evil before we came to know God.
Lord, you always give me justice when I bring a case before you. So let me bring you this complaint: Why are the wicked so prosperous? Why are evil people so happy?
~ Jeremiah 12:1 [NLT]