'Come in Peace' in the Bible

And Samuel did as the Lord said and came to Beth-lehem. And the responsible men of the town came out to him in fear and said, Do you come in peace?

And David went out to them, and said to them, If you have come in peace to give me help, my heart will be united with yours; but if you have come to give me up to those who would take my life, though my hands are clean from wrongdoing, then may the God of our fathers see it and give you punishment.