"But if your gift is that of being able to “speak in tongues,” that is, to speak in languages you haven’t learned, you will be talking to God but not to others, since they won’t be able to understand you. You will be speaking by the power of the Spirit, but it will all be a secret." - 1 Corinthians 14:2 TLB Version, Living Bible.
2) You will stay connected with the Holy Spirit
"And everyone present was filled with the Holy Spirit and began speaking in languages they didn’t know, for the Holy Spirit gave them this ability." - Acts 2:4 TLB Version, Living Bible.
will grow spiritually
"So a person “speaking in tongues” helps him/herself grow spiritually." 1 Corinthians 14:4a TLB Version, Living Bible.
4) Helps You to Pray the right prayers to God
"And in the same way—by our faith—the Holy Spirit helps us with our daily problems and in our praying. For we don’t even know what we should pray for nor how to pray as we should, but the Holy Spirit prays for us with such feeling that it cannot be expressed in words." - Romans 8:26 TLB Version, Living Bible.
5) Gives You the Authority to Stand Against the Work of Satan and his cohorts
"And those who believe shall use my authority to cast out demons, and they shall speak new languages (speaking in tongues). They will be able even to handle snakes with safety, and if they drink anything poisonous, it won’t hurt them; and they will be able to place their hands on the sick and heal them." Mark 16:17-18 TLB Version, Living Bible.
Inspired by an article that I read on KCM.org
Picture reference: gospelepistle.com