We are able to persevere only because God works within us, within our free wills. And because God is at work in us, we are certain to persevere. The decrees of God concerning election are immutable. They do not change, because He does not change. All whom He justifies He glorifies. None of the elect has ever been lost.
R. C. SproulIn the psalms, we have a collection of 150 prayers that were inspired originally by the Holy Ghost. If you want to know how God is pleased and honored in prayer, why not immerse yourself in the prayers that he himself has inspired?
R. C. Sproul