Article on Sovereignty of God and Evangelism
Here is a link to an article published by Table Talk of Ligonier Ministries - great folks and a great magazine! This is worth a read because it explains well the importance of understanding God's sovereignty in regards to evangelism.
They can become tempted to modify the Gospel message (making in false) in order to make it easier to accept - the prosperity gospel is a classic example of how this happens (the true Gospel is not so easy to accept).
Enjoy this article and God bless you!
ARTICLE LINK: THE SOVEREIGNTY OF GOD AND SOUL WINNING