Well, read the other things he tells us.
Smith Wigglesworth prayed in tongues aswell.
How can one NOT believe in tongues/want to speak in tongues? It has made me spiritfilled many times, and it makes me happy, peaceful and well in the spirit, in the morning.
Like it says in 1 Cor 14:4 below, speaking in tongues edifies and improves oneself
1 Corinthians 14:14
(Amplified Bible)
For if I pray in an [unknown] tongue, my spirit [by the Holy Spirit within me] prays, but my mind is unproductive [it bears no fruit and helps nobody].
1 Corinthians 14:13-15 (in Context)
1 Corinthians 14:15
(Amplified Bible)
Then what am I to do? I will pray with my spirit [by the Holy Spirit that is within me], but I will also pray [intelligently] with my mind and understanding; I will sing with my spirit [by the Holy Spirit that is within me], but I will sing [intelligently] with my mind and understanding also.
1 Corinthians 14:14-16 (in Context)
Jude 1:20
(Amplified Bible)
But you, beloved, build yourselves up [founded] on your most holy faith [ make progress, rise like an edifice higher and higher], praying in the Holy Spirit;
Jude 1:19-21 (in Context)
1 Cor 14:2
(Amplified Bible)
For one who speaks in an [unknown] tongue speaks not to men but to God, for no one understands or catches his meaning, because in the [Holy] Spirit he utters secret truths and hidden things [not obvious to the understanding].
1 Cor 14:4
(Amplified Bible)
He who speaks in a [strange] tongue edifies and improves himself, but he who prophesies [[c]interpreting the divine will and purpose and teaching with inspiration] edifies and improves the church and promotes growth [in Christian wisdom, piety, holiness, and happiness].
Paul said:
1 Cor 14:18
(Amplified Bible)
I thank God that I speak in [strange] tongues (languages) more than any of you or all of you put together;
Obviously there are angelic/(spiritual languages?) too:
1 Corinthians 13:1
(Amplified Bible)
IF I [can] speak in the tongues of men and [even] of angels, but have not love (that reasoning, intentional, spiritual devotion such as is inspired by God's love for and in us), I am only a noisy gong or a clanging cymbal.