Here are some quotes from a sermon I preached this morning:
And what I mean in this message when I say that God is sovereign is not merely that God has the power and right to govern all things, but that he does govern all things, for his own wise and holy purposes. John Piper
The sovereignty of God I take to be the absolute authority, rule, and government of God in the whole of that reality that exists distinct from Himself in the realms of nature and of grace. It is a concept that respects His relation to other beings and to all other being and existence. John Murray
To say that God's controlling power is efficacious is simply to say that it always accomplishes its purpose. God never fails to accomplish what he sets out to do. John Frame
4.God's exercise of power over His creation ... His exercise of rule over creation ... God has a purpose in all that He does in the world and He providentially governs or directs all things in order that they accomplish his purposes. Wayne Grudem
5.We believe that God upholds and governs all things—from galaxies to subatomic particles, from the forces of nature to the movements of nations, and from the public plans of politicians to the secret acts of solitary persons—all in accord with His eternal, all-wise purposes to glorify Himself, yet in such a way that He never sins, nor ever condemns a person unjustly; but that His ordaining and governing all things is compatible with the moral accountability of all persons created in His image. Desiring God - Rebuilding Some Basics of Bethlehem: 10 Reasons Why Believing in the Sovereignty of God Matters
We must remember that we are all born sinful. Because of Adam's sin, we all come into the world with sinful hearts. Thus, God doesn't cause sin by taking righteous people and making them do what they don't want to. He does not inject sinful desires into people. Rather, we are already sinful. God simply leaves us to our own natures and makes use of the evil that is already there. Thus, we are responsible for our sinful actions because they proceed from our own heart. The source of sin is in the human heart, not God. What God does is divide, arrange, and direct the sin in the human heart, so that it manifests itself according to His purposes ...
The sin in the human heart is not produced by God. Rather, He is the negative cause of it because He is permitting it to exist when He could change it. Further, it seems that God uses negative causation and secondary causation to specifically direct the course of human sin. But God does this in such a way that He is never the positive cause of sin--that is, he is never the producer of evil in a person's heart ... John Frame