Peace may be defined as a time without strife or armed conflict. People describe the eye of a hurricane as peaceful, though it is just a time of rest between the front and the back of the storm.
Peace is also defined as the time between wars. Prior to the start of World War I (1914) there had been no major war since the end of the Napoleonic Wars in 1815, yet there was minor strife in many regions. The 21 years between World War I ending and the start of World War II were filled with conflict leading directly from one to the other. The Cold War was filled with turmoil and minor wars.
Simon and Jude were minor apostles, not mentioned much in the Gospels and Acts. They were present in the Upper Room and according to tradition, found the peace which Jesus promised. They went to Persia (Iran) and were martyred. If they were troubled and afraid, (John 14:1) they would not have gone on the mission.
Trusting and relying on the promises of Jesus gives us a peace through which, while battered by the world, we are not troubled, but find the strength to calmly endure.
God of peace, help us trust in the peace Jesus left us, and help us to face each day with strength, peace and hope. Amen. — DG