Question:
What is the difference between speaking in tongues and speaking in the Spirit, or praying in tongues and praying in the Spirit?

Answer:
Tongues is a gift that was given to some in the church (1 Corinthians 12:30). Praying or speaking in the Spirit is when we are “filled with the Spirit.” When we are filled with the Spirit the Spirit controls us. He does this when we are subject to Christ by obeying His Word.

“Be not drunk with wine, wherein is excess; but be filled with the Spirit; speaking to yourselves in psalms and hymns and spiritual songs, singing and making melody in your heart to the Lord; giving thanks always for all things unto God and the Father in the name of our Lord Jesus Christ; submitting yourselves one to another in the fear of God” (Ephesians 5:18-21).