You will have many trials and sorrows

(J. R. Miller, "Counsel and Help" 1907)

"You may have peace in Me. Here on earth you will
 have many trials and sorrows." John 16:33

There is no life into which do not come many things
calculated to cause anxiety and disturbance of mind:
  there are great sorrows;
  there are perplexities as to duty;
  there are disappointments and losses;
  there are annoyances and hindrances;
  there are chafings and irritations in ordinary life;
  there are countless petty cares and frets.

All of these tend to break the hearts' peace and to
disturb its quiet. Yet, there is no lesson which is urged
more continuously or more earnestly in the Scriptures,
than that a Christian should never worry, or let anxious
care oppress his heart. He is to live without disturbance
and with unbroken peace—even in the midst of the
most trying experiences.

"The peace of God, which transcends all understanding,
 will guard your hearts and your minds in Christ Jesus."
 Philippians 4:7

"Let the peace of Christ rule in your hearts."
    Colossians 3:15