1 Corinthians 14:21
21 In the 1alaw it is written, 2b"By those of other tongues and with the lips of others I will speak to this people; even so they will not listen to Me, says the Lord.''
212 This word in Isa. 28:9-13 indicates that the speaking in strange tongues was a chastisement to the children of Israel because they did not believe the intelligible word of God. Hence, the apostle's quoting of this word implies that the Corinthians had not properly received the intelligible revelation of God through the apostles.