Believers submit to it, seek to understand it, and, as they understand it, rejoice in it.
There is nothing evil about this doctrine. If properly understood, it is one of the most blessed doctrines of the Bible. Predestination is God determining from eternity what he will do in time. If you rejoice in what God is doing now, you will rejoice even more to know that he determined to do it from eternity. He not only determined to save an elect multitude, but also determined who would be in that multitude.