Acts 2:3
"And there appeared unto them cloven tongues like as of fire, and it sat upon each of them."
Cross References (ranked by relevance)
I indeed baptize you with water unto repentance: but he that cometh after me is mightier than I, whose shoes I am not worthy to bear: he shall baptize you with the Holy Ghost, and with fire:
Is not my word like as a fire? saith the LORD; and like a hammer that breaketh the rock in pieces?
And they said one to another, Did not our heart burn within us, while he talked with us by the way, and while he opened to us the scriptures?
And they were all filled with the Holy Ghost, and began to speak with other tongues, as the Spirit gave them utterance.
And the LORD said, Behold, the people is one, and they have all one language; and this they begin to do: and now nothing will be restrained from them, which they have imagined to do.
To another the working of miracles; to another prophecy; to another discerning of spirits; to another divers kinds of tongues; to another the interpretation of tongues:
Cretes and Arabians, we do hear them speak in our tongues the wonderful works of God.
And I saw another angel fly in the midst of heaven, having the everlasting gospel to preach unto them that dwell on the earth, and to every nation, and kindred, and tongue, and people,