There cannot be any peace where there is uncertainty.

From Romans 15:13:  “May the God of hope fill you with all joy and peace in believing, so that you may abound in hope by the power of the Holy Spirit.”

D. L. Moody (1837-1899), also known as Dwight Lyman Moody, was an American evangelist and Christian teacher.  He is frequently credited with inspiring modern mass revivalism.