The stillness of the peace of God is mine.
W-273.1. Perhaps we are now ready for a day of undisturbed tranquility. 2 If this is not yet feasible, we are content and even more than satisfied to learn how such a day can be achieved. 3 If we give way to a disturbance, let us learn how to dismiss it and return to peace. 4 We need but tell our minds, with certainty, "The stillness of the peace of God is mine," and nothing can intrude upon the peace that God Himself has given to His Son.
W-273.2. Father, Your peace is mine. 2 What need have I to fear that anything can rob me of what You would have me keep? 3 I cannot lose Your gifts to me. 4 And so the peace You gave Your Son is with me still, in quietness and in my own eternal love for You.