Evangelism: God's Part and Mine Part 3

It is right to recognize our responsibility to engage in aggressive evangelism. It is right to desire the conversion of unbelievers. It is right to want one's presentation of the gospel to be as clear and forcible as possible. If we preferred that converts should be few and far between, and did not care whether our proclaiming of Christ went home or not, there would be something wrong with us. But it is not right when we take it on us to do more than God has given us to do. It is not right when we regard ourselves as responsible for securing converts, and look to our own enterprise and techniques to accomplish what only God can accomplish. To do that is to intrude ourselves into the office of the Holy Spirit, and to exalt ourselves as the agents of the new birth. And the point that we must see it this: only by letting our knowledge of God's sovereignty control the way in which we plan, and pray, and work in his service, can we avoid becoming guilty of this fault. For where we are not consciously relying on God, there we shall inevitably be found relying on ourselves. And the spirit of self-reliance is a blight on evangelism. Such, however, is the inevitable consequence of forgetting God's sovereignty in the conversion of souls.-J I Packer (Evangelism and the Sovereignty of God Pgs.36-37)