Matthew 6:8.

Praying in Faith and Believing by Faith when you speak to God, that it is already done before you finish your request.  Our Father in heaven knows what we have need of before we ask.

James 1:6-9

Believe when you pray and have no doubt; 

Jude 20-21

"But you, beloved, build yourselves up in your most holy faith; pray in the HOLY SPIRIT: keep yourselves in the love of God, waiting for the mercy of our Lord Jesus Christ that leads to eternal life"  Praying in tongues is a declaration for the perfect will of God to be done in your life.

Tongues are your given to you from the Holy Spirit.  It is your heavenly language  and the devil can not understand one word of your Spiritual language.

If you desire to be save and filled with the Holy Spirit and with the evidence of speaking in tongues, repeat these words by faith and believe in your heart.

Romans 10:9-10, 11

vs9. If you confess with your mouth that Jesus is Lord and believe in your heart that God raised him from the dead, you will be saved. vs10: For one believes with the heart and so is justified, and one confesses with the mouth and so is saved.  11: For the scripture says, "No one who believes in Him will be put to shame.

"SALVATION PRAYER"

LORD GOD, I AM A SINNER SAVED BY GRACE, COME INTO MY HEART, AND BE LORD OF MY LIFE AND FILL ME WITH THE HOLY SPIRIT AND THE EVEIDENCE OF TONGUES, FATHER GOD, I RECIEVE YOU NOW IN THE NAME OF JESUS.