Mark 4:40

why, said he, are ye so frighted? are ye still so void of faith?

Mark 5:36

Jesus, upon hearing that, immediately said to the ruler of the synagogue, "be not 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
why, said he, are ye so frighted? are ye still so void of faith?
Mark 5:36
Jesus, upon hearing that, immediately said to the ruler of the synagogue, "be not afraid, only believe."