1 Corinthians 14:2-3, Speaking in an Unknown Tongue
The gift of speaking in an unknown tongue or foreign language was much coveted after in the Corinthian church even though when such a one speaks, the others who do not speak that foreign language will not be able to understand. God knows what he speaks but it doesn’t really help others. The spirit’s gift is for the building up of God’s people. As such, it does not fulfil the God-given purpose!