I love this quote from DesiringGod.org's blog. It really speaks to the heart of our complete dependence upon God and his complete love and supremacy:
[God] works all things according to the counsel of his will. And when the Bible says ‘all things,’ it means all things:
This ‘all things’ includes the fall of sparrows (Matt 10:29), the rolling of dice (Prov 16:33), the slaughter of his people (Ps 44:11), the decisions of kings (Prov 21:1), the failing of sight (Exod 4:11), the sickness of children (2 Sam 12:15), the loss and gain of money (1 Sam 2:7), the suffering of saints (1 Pet 4:19), the completion of travel plans (Jas 4:15), the persecution of Christians (Heb 12:4–7), the repentance of souls (2 Tim 2:25), the gift of faith (Phil 1:29), the pursuit of holiness (Phil 3:12–13), the growth of believers (Heb 6:3), the giving of life and the taking in death (1 Sam 2:6), and the crucifixion of his Son (Acts 4:27–28). (John Piper, “Why I Do Not Say ‘God Did Not Cause This Calamity, But He Can Use It for Good’”)
What a comfort that God is never surprised by man's cruelty or sin. He works all of it, the good and the bad, toward our good! Oh Holy Lord, how beautiful is your insurmountable power and love!