Jesus warned them not to tell anyone about him.
Read Mark 8:30 Using Other Translations
And he charged them that they should tell no man of him.
And he strictly charged them to tell no one about him.
But Jesus warned them not to tell anyone about him.
Scripture quoted by permission. Quotations designated (NIV) are from THE HOLY BIBLE: NEW INTERNATIONAL VERSION®. NIV®. Copyright © 1973, 1978, 1984, 2011 by Biblica. All rights reserved worldwide.
(New International Version Bible Online)