And we know that God causes all things to work together for good to those who love God, to those who are called according to His purpose. For those whom He foreknew, He also predestined to become conformed to the image of His Son, so that He would be the firstborn among many brethren; and these whom He predestined, He also called; and these whom He called, He also justified; and these whom He justified, He also glorified. Romans 8:28-30
Because He's committed to this process in your life, God uses every circumstance in your life to shape you to this end. Even when evil things come into your life from evil sources, God's able to take those experiences and use them to strengthen you, get your attention, and refocus your life on Him. Read that first sentence of today's passage again. Lock it into your mind. When difficult times come, trust God.
As you read the whole passage it becomes clear that this work of God to make you like Jesus is a continuous process that starts when you're born again and continues until you're finally with God in heaven, "glorified."
God's reminding you (and me!) today that while He's constantly working through your circumstances, they'll only make you more like Christ if you respond to them with trust in God and a willingness to choose His way in your life.