angel
Acts Chapter 8:26
And the angel of the Lord spake unto Philip, saying, Arise, and go toward the south unto the way that goeth down from Jerusalem unto Gaza, which is desert.
Hebrews Chapter 1:14
Are they not all ministering spirits, sent forth to minister for them who shall be heirs of salvation?
Hebrews Chapter 13:2
Be not forgetful to entertain strangers: for thereby some have entertained angels unawares.