Mark 4:40

He said to them, "Why are you so afraid? Have you no faith?"

Mark 5:36

But ignoring what they said, Jesus said to the ruler of the synagogue, "Do not be afraid; only believe."

Treasury of Scripture Knowledge

Summary

And Isaiah said unto them, Thus shall ye say unto your master, Thus saith the LORD, Be not afraid of the words that thou hast heard, wherewith the servants of the king of Assyria have blasphemed me.

Bible References

Be not

Mark 4:40
He said to them, "Why are you so afraid? Have you no faith?"
Mark 5:36
But ignoring what they said, Jesus said to the ruler of the synagogue, "Do not be afraid; only believe."