MUST A BELIEVER SPEAK IN TONGUES?

Tongue is a language that is spiritually acquired, never a natural utterance.

No bible verse speaks of such desperacy that a Believer "MUST" speak in tongues. It is only admonished that a Believer "SHOULD" speak in tongues as it is the prime evidence of "baptism of the Holyghost". Carefully study these scriptures; 

Mark 16:16-18 KJV

[16] He that believeth and is baptized shall be saved; but he that believeth not shall be damned.

[17] And these signs shall follow them that believe; In my name shall they cast out devils; they shall speak with new tongues;

[18] They shall take up serpents; and if they drink any deadly thing, it shall not hurt them; they shall lay hands on the sick, and they shall recover.

Acts 2:3-4 KJV

[3] And there appeared unto them cloven tongues like as of fire, and it sat upon each of them.

[4] And they were all filled with the Holy Ghost, and began to speak with other tongues, as the Spirit gave them utterance.

Acts 10:44-48 KJV

While Peter yet spake these words, the Holy Ghost fell on all them which heard the word.

[45] 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.

[46] For they heard them speak with tongues, and magnify God. Then answered Peter,

[47] Can any man forbid water, that these should not be baptized, which have received the Holy Ghost as well as we?

[48] And he commanded them to be baptized in the name of the Lord. Then prayed they him to tarry certain day.

Acts 19:5-6 KJV

[5] When they heard this, they were baptized in the name of the Lord Jesus.

[6] And when Paul had laid his hands upon them, the Holy Ghost came on them; and they spake with tongues, and prophesied.

1 Corinthians 12:3-12 KJV

Wherefore I give you to understand, that no man speaking by the Spirit of God calleth Jesus accursed: and that no man can say that Jesus is the Lord, but by the Holy Ghost.

[4] Now there are diversities of gifts, but the same Spirit.

[5] And there are differences of administrations, but the same Lord.

[6] And there are diversities of operations, but it is the same God which worketh all in all.

[7] But the manifestation of the Spirit is given to every man to profit withal.

[8] For to one is given by the Spirit the word of wisdom; to another the word of knowledge by the same Spirit;

[9] To another faith by the same Spirit; to another the gifts of healing by the same Spirit;

[10] 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:

[11] But all these worketh that one and the selfsame Spirit, dividing to every man severally as he will.

1 Corinthians 12:28-31 KJV

[28]And God hath set some in the church, first apostles, secondarily prophets, thirdly teachers, after that miracles, then gifts of healings, helps, governments, diversities of tongues.

[29] Are all apostles? are all prophets? are all teachers? Are all workers of miracles?

[30] Have all the gifts of healing? do all speak with tongues? do all interpret?

[31] But covet earnestly the best gifts: and yet shew I unto you a more excellent way.

1 Corinthians 14:39 KJV

[39] Wherefore, brethren, covet to prophesy, and forbid not to speak with tongues.

Consequently, the utmost advantage of speaking in tongues is that it helps you pray the will of God all by the intervention of the Spirit. This is what you cannot really do by yourself.

Romans 8:26-27 KJV

[26]Likewise the Spirit also helpeth our infirmities: for we know not what we should pray for as we ought: but the Spirit itself maketh intercession for us with groanings which cannot be uttered.

[27] And he that searcheth the hearts knoweth what is the mind of the Spirit, because he maketh intercession for the saints according to the will of God.

In conclusion, speaking in tongue does not make you more of a genuine Christian as you can read that it is NOT a prerequisite to the kingdom of God. However, it is advisable that a Believer SHOULD covet it for its many functions and advantages.

Hallelujah! Jesus Reigns!