The Word for today is a promise from God. Peace won't flow your way just because you are a Christian or because you attend church services. There is a condition for this promise and no human can give you peace.
The Word for today says: "You will keep him in perfect peace whose mind is stayed on You because he trusts in You" and verse 4 says: "Trust in the Lord forever, for the Lord Jehovah is the Rock Eternal."
Dear Believer, we live in a troubled world yet in the midst of all this we can have perfect peace if our minds stays on God. Keep your mind on God, the Blessed Hope.