"Mark the perfect man, and behold the upright: for the end of that man is peace." -Psalm 37:37, KJV

Notice that the verse does not say that the upright and perfect will always have peace. It simply says that their end is peace. Christians will not necessarily have peace in this life, but when we get to heaven, then will we have eternal peace. The wicked will not have this luxury, but will be destroyed (Psa 37:38). Praise the Lord for His promises!

"But the transgressors shall be destroyed together: the end of the wicked shall be cut off." -Psalm 37:38, KJV