The bible confirms itself by providing 2-3 examples of truth. (Matt. 18:16) The following scriptures provide the evidence that tongues accompanies the infilling of the Holy Ghost. Also consider Peter's comment in Acts 2:33, it confirms that what they were hearing (speaking in tongues) was in fact the Holy Ghost.
Acts 2:2-8
“And suddenly there came a sound from heaven as of a rushing mighty wind, and it filled all the house where they were sitting.
And there appeared unto them cloven tongues like as of fire, and it sat upon each of them.
And they were all filled with the Holy Ghost, and began to speak with other tongues, as the Spirit gave them utterance.
And there were dwelling at Jerusalem Jews, devout men, out of every nation under heaven.
Now when this was noised abroad, the multitude came together, and were confounded, because that every man heard them speak in his own language.
And they were all amazed and marvelled, saying one to another, Behold, are not all these which speak Galilaeans?
And how hear we every man in our own tongue, wherein we were born?”
Acts 2:33
Therefore being by the right hand of God exalted, and having received of the Father the promise of the Holy Ghost, he hath shed forth this, which ye now see and hear.
Acts 10:44-48
“While Peter yet these words, the Holy Ghost fell on all them which heard the word.
And they of the circumcision which believed were astonished, as many as came with Peter, because that on the Gentiles also was poured out the gift of the Holy Ghost.
For they heard them speak with tongues, and magnify God. Then answered Peter,
Can any man forbid water, that these should not be baptized, which have received the Holy Ghost as well as we?
And he commanded them to be baptized in the name of the Lord. Then prayed they him to tarry certain days.”
Acts 19:1-6
“And it came to pass, that, while Apollos was at Corinth, Paul having passed through the upper coasts came to Ephesus: and finding certain disciples,
He said unto them, Have ye received the Holy Ghost SINCE ye believed? And they said unto him, We have not so much as heard whether there be any Holy Ghost.
And he said unto them, Unto what then were ye baptized? And they said, Unto John's baptism.
Then said Paul, John verily baptized with the baptism of repentance, saying unto the people, that they should believe on him which should come after him, that is, on Christ Jesus.
When they heard this, they were baptized in the name of the Lord Jesus.
And when Paul had laid his hands upon them, the Holy Ghost came on them; and they spake with tongues, and prophesied.”
Being third generation Pentecostal this discussion not new ... Third generation and i have yet to see the tongues of Fire as stated in Act 2:3 .. I have seen much hurt and rejection from the YOU MUST SPEAK IN TONGUES crowd .... Seen and heard much fakery god dust feathers all that used car salesman junk We Holy Ghost filled folks should be sure we are using the whole cancel of God all HIs Word not just the select passages that fit our theologies...
No mention of tongues here;
Joh 20:19 Then the same day at evening, being the first day of the week, when the doors were shut where the disciples were assembled for fear of the Jews, came Jesus and stood in the midst, and saith unto them, Peace be unto you.
Joh 20:20 And when he had so said, he shewed unto them his hands and his side. Then were the disciples glad, when they saw the Lord.
Joh 20:21 Then said Jesus to them again, Peace be unto you: as my Father hath sent me, even so send I you.
Joh 20:22 And when he had said this, he breathed on them, and saith unto them, Receive ye the Holy Ghost:
Joh 20:23 Whose soever sins ye remit, they are remitted unto them; and whose soever sins ye retain, they are retained.
Act 2:38 Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.
Act 6:3 Wherefore, brethren, look ye out among you seven men of honest report, full of the Holy Ghost and wisdom, whom we may appoint over this business.
Act 8:15 Who, when they were come down, prayed for them, that they might receive the Holy Ghost:
Act 8:16 (For as yet he was fallen upon none of them: only they were baptized in the name of the Lord Jesus.)
Act 8:17 Then laid they their hands on them, and they received the Holy Ghost.
Eph 4:30 And grieve not the holy Spirit of God, whereby ye are sealed unto the day of redemption.
Act 9:17 And Ananias went his way, and entered into the house; and putting his hands on him said, Brother Saul, the Lord, even Jesus, that appeared unto thee in the way as thou camest, hath sent me, that thou mightest receive thy sight, and be filled with the Holy Ghost.
Act 9:18 And immediately there fell from his eyes as it had been scales: and he received sight forthwith, and arose, and was baptized.
1Th 1:5 For our gospel came not unto you in word only, but also in power, and in the Holy Ghost, and in much assurance; as ye know what manner of men we were among you for your sake.
Jud 1:20 But ye, beloved, building up yourselves on your most holy faith, praying in the Holy Ghost,
1Co 14:38 But if any man be ignorant, let him be ignorant.
1Co 14:39 Wherefore, brethren, covet to prophesy, and forbid not to speak with tongues.
1Co 14:40 Let all things be done decently and in order.